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Extract from the Register of European Patents

EP About this file: EP1777814

EP1777814 - Methods and apparatus for switching between class A and A/B operation in a power amplifier [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  01.06.2012
Database last updated on 05.07.2024
Most recent event   Tooltip04.10.2013Lapse of the patent in a contracting state
New state(s): HU		published on 06.11.2013  [2013/45]
Applicant(s)For all designated states
Peavey Electronics Corporation
5022 Harley Peavey Drive
Meridian, MS 39305 / US
[2007/17]
Inventor(s)01 / Fields, John Calvin
1453 Promise Acres Drive
Meridian, Mississippi 39307 / US
02 / Peavey, Hartley D.
5022 Hartley Peavey Drive
Meridian, Mississippi 39305 / US
 [2007/17]
Representative(s)Pfenning, Meinig & Partner mbB
Patent- und Rechtsanwälte
Joachimsthaler Straße 10-12
10719 Berlin / DE
[N/P]
Former [2008/28]Pfenning, Meinig & Partner GbR
Patent- und Rechtsanwälte Joachimstaler Strasse 10-12
10719 Berlin / DE
Former [2007/17]Pfenning, Meinig & Partner GbR
Joachimstaler Strasse 10-12
10719 Berlin / DE
Application number, filing date06076871.012.10.2006
[2007/17]
Priority number, dateUS2005024853312.10.2005         Original published format: US 248533
[2007/17]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP1777814
Date:25.04.2007
Language:EN
[2007/17]
Type: A3 Search report 
No.:EP1777814
Date:05.03.2008
[2008/10]
Type: B1 Patent specification 
No.:EP1777814
Date:27.07.2011
Language:EN
[2011/30]
Search report(s)(Supplementary) European search report - dispatched on:EP01.02.2008
ClassificationIPC:H03F3/26, H03F3/28, H03F3/30, H03F3/181, H03F3/02, H03F3/20, H03F1/02, H03F3/21
[2008/10]
CPC:
H03F3/26 (EP,US); H03F1/0261 (EP,US); H03F3/02 (EP,US);
H03F3/181 (EP,US); H03F3/20 (EP,US); H03F3/211 (EP,US);
H03F3/28 (EP,US); H03F3/30 (EP,US); H03F2200/27 (EP,US);
H03F2200/421 (EP,US); H03F2200/541 (EP,US); H03F2203/21145 (EP,US) (-)
Former IPC [2007/17]H03F3/26, H03F3/28, H03F3/30, H03F3/181, H03F3/02, H03F3/20
Designated contracting statesAT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   NL,   PL,   PT,   RO,   SE,   SI,   SK,   TR [2007/17]
TitleGerman:Verfahren und Vorrichtung zur Umschaltung zwischen Klasse-A-Betrieb und Klasse-A/B-Betrieb eines Leistungsverstärkers[2007/17]
English:Methods and apparatus for switching between class A and A/B operation in a power amplifier[2007/17]
French:Procédé et dispositif de commutation entre les modes de fonctionnement en classe A et en classe A/B dans un amplificateur de puissance[2007/17]
Examination procedure12.10.2006Examination requested  [2007/17]
15.05.2008Despatch of a communication from the examining division (Time limit: M04)
24.09.2008Reply to a communication from the examining division
09.02.2011Communication of intention to grant the patent
08.06.2011Fee for grant paid
08.06.2011Fee for publishing/printing paid
Divisional application(s)The date of the Examining Division's first communication in respect of the earliest application for which a communication has been issued is  15.05.2008
Opposition(s)02.05.2012No opposition filed within time limit [2012/27]
Fees paidRenewal fee
30.10.2008Renewal fee patent year 03
29.10.2009Renewal fee patent year 04
29.10.2010Renewal fee patent year 05
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipAT27.07.2011
CY27.07.2011
CZ27.07.2011
EE27.07.2011
HU27.07.2011
LT27.07.2011
LV27.07.2011
NL27.07.2011
PL27.07.2011
RO27.07.2011
SI27.07.2011
SK27.07.2011
TR27.07.2011
IE12.10.2011
LU12.10.2011
BG27.10.2011
GR28.10.2011
CH31.10.2011
LI31.10.2011
MC31.10.2011
ES07.11.2011
IS27.11.2011
PT28.11.2011
[2013/45]
Former [2013/44]AT27.07.2011
CY27.07.2011
CZ27.07.2011
EE27.07.2011
LT27.07.2011
LV27.07.2011
NL27.07.2011
PL27.07.2011
RO27.07.2011
SI27.07.2011
SK27.07.2011
TR27.07.2011
IE12.10.2011
LU12.10.2011
BG27.10.2011
GR28.10.2011
CH31.10.2011
LI31.10.2011
MC31.10.2011
ES07.11.2011
IS27.11.2011
PT28.11.2011
Former [2013/29]AT27.07.2011
CY27.07.2011
CZ27.07.2011
EE27.07.2011
LT27.07.2011
LV27.07.2011
NL27.07.2011
PL27.07.2011
RO27.07.2011
SI27.07.2011
SK27.07.2011
IE12.10.2011
LU12.10.2011
BG27.10.2011
GR28.10.2011
CH31.10.2011
LI31.10.2011
MC31.10.2011
ES07.11.2011
IS27.11.2011
PT28.11.2011
Former [2013/25]AT27.07.2011
CY27.07.2011
CZ27.07.2011
EE27.07.2011
LT27.07.2011
LV27.07.2011
NL27.07.2011
PL27.07.2011
RO27.07.2011
SI27.07.2011
SK27.07.2011
IE12.10.2011
LU12.10.2011
GR28.10.2011
CH31.10.2011
LI31.10.2011
MC31.10.2011
ES07.11.2011
IS27.11.2011
PT28.11.2011
Former [2013/22]AT27.07.2011
CY27.07.2011
CZ27.07.2011
EE27.07.2011
LT27.07.2011
LV27.07.2011
NL27.07.2011
PL27.07.2011
RO27.07.2011
SI27.07.2011
SK27.07.2011
IE12.10.2011
GR28.10.2011
CH31.10.2011
LI31.10.2011
MC31.10.2011
ES07.11.2011
IS27.11.2011
PT28.11.2011
Former [2012/47]AT27.07.2011
CY27.07.2011
CZ27.07.2011
EE27.07.2011
LT27.07.2011
LV27.07.2011
NL27.07.2011
PL27.07.2011
RO27.07.2011
SI27.07.2011
SK27.07.2011
IE12.10.2011
GR28.10.2011
CH31.10.2011
LI31.10.2011
MC31.10.2011
IS27.11.2011
PT28.11.2011
Former [2012/33]AT27.07.2011
CY27.07.2011
CZ27.07.2011
EE27.07.2011
LT27.07.2011
LV27.07.2011
NL27.07.2011
PL27.07.2011
RO27.07.2011
SI27.07.2011
SK27.07.2011
GR28.10.2011
CH31.10.2011
LI31.10.2011
MC31.10.2011
IS27.11.2011
PT28.11.2011
Former [2012/25]AT27.07.2011
CY27.07.2011
CZ27.07.2011
EE27.07.2011
LT27.07.2011
LV27.07.2011
NL27.07.2011
PL27.07.2011
RO27.07.2011
SI27.07.2011
SK27.07.2011
GR28.10.2011
MC31.10.2011
IS27.11.2011
PT28.11.2011
Former [2012/23]AT27.07.2011
CY27.07.2011
CZ27.07.2011
EE27.07.2011
LT27.07.2011
LV27.07.2011
NL27.07.2011
PL27.07.2011
RO27.07.2011
SI27.07.2011
SK27.07.2011
GR28.10.2011
IS27.11.2011
PT28.11.2011
Former [2012/21]AT27.07.2011
CY27.07.2011
CZ27.07.2011
LT27.07.2011
LV27.07.2011
NL27.07.2011
PL27.07.2011
SI27.07.2011
GR28.10.2011
IS27.11.2011
PT28.11.2011
Former [2012/12]AT27.07.2011
CY27.07.2011
LT27.07.2011
LV27.07.2011
NL27.07.2011
PL27.07.2011
SI27.07.2011
GR28.10.2011
IS27.11.2011
PT28.11.2011
Former [2012/11]AT27.07.2011
LT27.07.2011
LV27.07.2011
NL27.07.2011
PL27.07.2011
SI27.07.2011
GR28.10.2011
IS27.11.2011
PT28.11.2011
Former [2012/10]LT27.07.2011
NL27.07.2011
GR28.10.2011
IS27.11.2011
PT28.11.2011
Former [2012/09]LT27.07.2011
NL27.07.2011
IS27.11.2011
PT28.11.2011
Former [2012/08]LT27.07.2011
NL27.07.2011
IS27.11.2011
Documents cited:Search[A]GB1189010  (THOMSON HOUSTON COMP FRANCAISE [FR]) [A] 1-19 * page 2, column L, line 10 - page 3, column L, line 23 *;
 [Y]US4087761  (FUKUMOTO NOBUO, et al) [Y] 1-19 * column 2, line 39 - column 7, line 26; figures 1-3 *;
 [A]EP0945977  (MATSUSHITA ELECTRIC IND CO LTD [JP]) [A] 1-19 * paragraphs [0015] - [0045]; figures 1,2 *;
 [Y]US2003169113  (KOMIJANI ABBAS [US], et al) [Y] 1-19 * paragraphs [0018] - [0048]; figures 1-8 *;
 [A]US2003179893  (SMITH RANDALL C [US]) [A] 1-19* paragraphs [0012] - [0014]; figures 2,3 *
by applicantUS4087761
 US2003169113
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.