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Extract from the Register of European Patents

EP About this file: EP0266145

EP0266145 - Electronic data processing apparatus for improved algebraic expression manipulation [Right-click to bookmark this link]
Former [1988/18]Improved algebraic expression manipulation method and implementation for an electronic data processing apparatus
[1994/15]
StatusNo opposition filed within time limit
Status updated on  16.02.1995
Database last updated on 03.10.2024
Most recent event   Tooltip15.08.2008Change - applicantpublished on 17.09.2008  [2008/38]
Applicant(s)For all designated states
Hewlett-Packard Company
3000 Hanover Street
Palo Alto, CA 94304-1112 / US
[N/P]
Former [2008/38]For all designated states
Hewlett-Packard Company
3000 Hanover Street
Palo Alto CA 94304-1112 / US
Former [1991/02]For all designated states
Hewlett-Packard Company
Mail Stop 20 B-O, 3000 Hanover Street
Palo Alto, California 94304 / US
Former [1988/18]For all designated states
Hewlett-Packard Company
3000 Hanover Street
Palo Alto California 94304 / US
Inventor(s)01 / Patton, Charles M.
1120 Fir Acres Drive
Eugene Oregon 97401 / US
[1988/18]
Representative(s)Colgan, Stephen James, et al
CARPMAELS & RANSFORD 43 Bloomsbury Square
London WC1A 2RA / GB
[N/P]
Former [1988/18]Colgan, Stephen James, et al
CARPMAELS & RANSFORD 43 Bloomsbury Square
London WC1A 2RA / GB
Application number, filing date87309419.726.10.1987
[1988/18]
Priority number, dateUS1986092392127.10.1986         Original published format: US 923921
[1988/18]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0266145
Date:04.05.1988
Language:EN
[1988/18]
Type: A3 Search report 
No.:EP0266145
Date:18.04.1990
Language:EN
[1990/16]
Type: B1 Patent specification 
No.:EP0266145
Date:13.04.1994
Language:EN
[1994/15]
Search report(s)(Supplementary) European search report - dispatched on:EP26.02.1990
ClassificationIPC:G06F9/44, G06F15/02
[1994/15]
CPC:
G06F15/02 (EP,US); G06F9/44 (EP,US)
Former IPC [1988/18]G06F15/02
Designated contracting statesDE,   FR,   GB [1988/18]
TitleGerman:Elektronische Datenverarbeitungsanlage zur Manipulation von algebraischen Formeln[1994/15]
English:Electronic data processing apparatus for improved algebraic expression manipulation[1994/15]
French:Installation de traitement électronique de données pour la manipulation de formule algébrique[1994/15]
Former [1988/18]Verfahren zur Manipulation von algebraischen Formeln und dessen Ausführung für eine elektronische Datenverarbeitungsanlage
Former [1988/18]Improved algebraic expression manipulation method and implementation for an electronic data processing apparatus
Former [1988/18]Méthode de manipulation de formule algébrique et sa mise en oeuvre pour une installation de traitement électronique de données
Examination procedure19.09.1990Examination requested  [1990/46]
12.10.1992Despatch of a communication from the examining division (Time limit: M06)
24.03.1993Reply to a communication from the examining division
19.07.1993Despatch of communication of intention to grant (Approval: Yes)
13.10.1993Communication of intention to grant the patent
01.12.1993Fee for grant paid
01.12.1993Fee for publishing/printing paid
Opposition(s)14.01.1995No opposition filed within time limit [1995/14]
Fees paidRenewal fee
03.10.1989Renewal fee patent year 03
20.09.1990Renewal fee patent year 04
18.09.1991Renewal fee patent year 05
18.09.1992Renewal fee patent year 06
17.09.1993Renewal fee patent year 07
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Documents cited:Search[A]DE3508548  (SHARP KK [JP])
 [A]  - The 11th Annual International Symposium on Computer Architecture, June 5-7 1984, Ann Arbor, MICH, USA; D. UNGAR et al. "Architecture of SOAR: Smalltalk on a RISC" P. 188-197
 [A]  - Proceedings of the 1986 IEEE International Conference on Systems, Man and Cybernetics, Oct 14-17, 1986, Atlanta, Georgia, USA R.J.K. JACOB "Direct Manipulation" p. 384-388
 [XP]  - Hewlett-Packard Journal, Vol. 38, Aug. 1987, No. 8, W.C. WICKES "An Evolutionary RPN Calculator for Technical Professionals", P. 11-17
 [A]  - Microprocessing and Microprogramming, Vol. 13, Apr. 1984, No. 4 F MAYER-LINDENBERG "An Interactive Programming Environment for Personal Microsystems Supporting Distributed Processing" p. 255-266
Examination   - Brown, P.J.: "Writing interactive compilers and interpreters" John Wiley & Sons, 1984
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.