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Extract from the Register of European Patents

EP About this file: EP0857744

EP0857744 - Process for deactivating alkali metal catalyst residues in poly(2,2,4,4-tetramethyl-1,3-cyclobutylene carbonate) [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  02.02.2001
Database last updated on 19.07.2024
Most recent event   Tooltip02.02.2001Application deemed to be withdrawnpublished on 21.03.2001 [2001/12]
Applicant(s)For all designated states
EASTMAN CHEMICAL COMPANY
100 North Eastman Road
Kingsport TN 37660 / US
[N/P]
Former [1998/33]For all designated states
EASTMAN CHEMICAL COMPANY
100 North Eastman Road
Kingsport, TN 37660 / US
Inventor(s)01 / Darnell, William Ronald
P.O. Box 2206
Weber City, Virginia 24290 / US
02 / Walker, Theodore Rossevelt
P.O. Box 3152
Kingsport, Tennessee 37664 / US
03 / Fleischer, Jean Carroll
4422 Rustic Way Street
Kingsport, Tennessee 37664 / US
[1998/33]
Representative(s)Wibbelmann, Jobst
Wuesthoff & Wuesthoff
Patentanwälte und Rechtsanwalt PartG mbB
Schweigerstrasse 2
81541 München / DE
[N/P]
Former [2000/27]Wibbelmann, Jobst, Dr., Dipl.-Chem.
Wuesthoff & Wuesthoff, Patent- und Rechtsanwälte, Schweigerstrasse 2
81541 München / DE
Former [1999/42]Watkins, David
Urquhart-Dykes & Lord, 91 Wimpole Street
London W1M 8AH / GB
Former [1998/33]Wibbelmann, Jobst, Dr., Dipl.-Chem.
Wuesthoff & Wuesthoff, Patent- und Rechtsanwälte, Schweigerstrasse 2
81541 München / DE
Application number, filing date97122806.923.12.1997
[1998/33]
Priority number, dateUS19960034163P30.12.1996         Original published format: US 34163 P
[1998/33]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0857744
Date:12.08.1998
Language:EN
[1998/33]
Type: A3 Search report 
No.:EP0857744
Date:10.03.1999
[1999/10]
Search report(s)(Supplementary) European search report - dispatched on:EP25.01.1999
ClassificationIPC:C08G64/40, C08G64/30, C08G64/02, C08K5/51, C08K3/32, C08L69/00
[1998/33]
CPC:
C08K3/32 (EP,US); C08G64/305 (EP,US); C08G64/406 (EP,US);
C08K5/51 (EP,US)
C-Set:
C08K3/32, C08L69/00 (EP,US);
C08K5/51, C08L69/00 (US,EP)
Designated contracting statesDE,   FR,   GB [1999/47]
Former [1998/33]AT,  BE,  CH,  DE,  DK,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE 
TitleGerman:Verfahren zur Deaktivierung von Alkalimetall-Katalysatorrückständen in Poly(2,2,4,4-tetramethyl-1,3-cyclobutylencarbonat)[1998/33]
English:Process for deactivating alkali metal catalyst residues in poly(2,2,4,4-tetramethyl-1,3-cyclobutylene carbonate)[1998/33]
French:Procédé pour desactiver des résidus de catalyseur de métaux alcalins dans du poly(2,2,4,4-tetraméthyl-1,3-cyclobutylène carbonate)[1998/33]
Examination procedure23.12.1997Examination requested  [1998/33]
19.05.2000Despatch of a communication from the examining division (Time limit: M04)
30.09.2000Application deemed to be withdrawn, date of legal effect  [2001/12]
24.10.2000Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [2001/12]
Fees paidRenewal fee
06.12.1999Renewal fee patent year 03
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[X]JPH059286  ;
 [X]JPH0415223  ;
 [XY]JPH041229  ;
 [A]JPS61151263  ;
 [XY]US3404122  (FRITZ GERHARD, et al) [X] 1,8-11 * example 6; claims 1,2 * * column 2, line 58 - column 3, line 38 * [Y] 2,12;
 [DY]UST873016I  (R. GILKEY ET AL.) [DY] 2,12 * the whole document *;
 [Y]FR2349612  (POUDRES & EXPLOSIFS STE NALE [FR]) [Y] 2,4,12 * example 1; claims 1,2 * * page 4, line 9 - line 26 *;
 JPH02180954  [ ] (KURARAY CO);
 [X]EP0534189  (MITSUBISHI PETROCHEMICAL CO [JP]) [X] 1,3,5,6,9-11 * example 12; claims 1-9 * * page 3, line 41 - page 5, line 6 *;
 [XY]EP0738579  (MITSUBISHI GAS CHEMICAL CO [JP]) [X] 1,3,8,10,11 * examples 1,4; claims 1-6 * * page 3, line 43 - line 57 * * page 4, line 42 - line 56 * [Y] 2,4,12;
 [X]  - DATABASE WPI, 1, Derwent World Patents Index, vol. 93, no. 08, Database accession no. 93-061697, XP002089672 & JPH059286 A 19930119 (NIPPON GE PLASTICS KK) [X] 1,5,6,8,11 * abstract *
 [X]  - DATABASE WPI, 1, Derwent World Patents Index, vol. 92, no. 09, Database accession no. 92-069933, XP002089673 & JPH0415223 A 19920120 (DAICEL CHEM IND LTD) [X] 1,8,11 * abstract *
 [XY]  - DATABASE WPI, 1, Derwent World Patents Index, vol. 92, no. 07, Database accession no. 92-053979, XP002089674 & JPH041229 A 19920106 (DAICEL CHEM IND LTD) [X] 1,5,6,8,11 * abstract * [Y] 2,12
 [Y]  - CHEMICAL ABSTRACTS, (19910128), vol. 114, no. 4, Database accession no. 25305, XP002089671 [Y] 2,12 * abstract *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19861126), vol. 010, no. 350, Database accession no. (C - 387), & JP61151263 A 19860709 (NIPPON POLYURETHAN KOGYO KK) [A] 1 * abstract *
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.