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EP0162778

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Extract from the Register of European Patents

EP About this file: EP0162778

EP0162778 - Instruction prefetch system for conditional branch instruction for central processor unit [Right-click to bookmark this link]
Status	No opposition filed within time limit Status updated on 21.10.1993 Database last updated on 05.10.2024
Most recent event Tooltip	07.03.1997	Lapse of the patent in a contracting state	published on 23.04.1997 [1997/17]
Applicant(s)	For all designated states DIGITAL EQUIPMENT CORPORATION 146 Main Street Maynard, MA 01754 / US
	[1985/48]
Inventor(s)	01 / Bruckert, William F. 16 Edith Road Hudson Massachusetts / US
	02 / Fossum, Tryggve 19 Increase Ward Drive Northboro Massachusetts / US
	03 / De Rosa, John A., Jr. 16 Lovers Lane Princeton Massachusetts / US
	04 / Glackemeyer, Richard E. 51 Nourse Road Bolton Massachusetts / US
	05 / Helenius, Allan E. 19 Mark Vincent Westford Massachusetts / US
	06 / Manton, John C. 112 Devon Court Street Marlboro Massachusetts / US
	[1985/48]
Representative(s)	Mongrédien, André, et al c/o SOCIETE DE PROTECTION DES INVENTIONS 25, rue de Ponthieu F-75008 Paris / FR
	[1985/48]
Application number, filing date	85400967.7	15.05.1985
	[1985/48]
Priority number, date	US19840612621	21.05.1984 Original published format: US 612621
	[1985/48]
Filing language	EN
Procedural language	EN
Publication	Type:	A2 Application without search report
	No.:	EP0162778
	Date:	27.11.1985
	Language:	EN
	[1985/48]
	Type:	A3 Search report
	No.:	EP0162778
	Date:	24.02.1988
	Language:	EN
	[1988/08]
	Type:	B1 Patent specification
	No.:	EP0162778
	Date:	16.12.1992
	Language:	EN
	[1992/51]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	07.01.1988
Classification	IPC:	G06F9/38	[1985/48]
	CPC:	G06F9/3804 (EP,US)
Designated contracting states	BE, CH, DE, FR, GB, IT, LI, NL, SE [1985/48]
Title	German:	Instruktionsvorgriffsystem für bedingte Sprungbefehle in einer zentralen Verarbeitungseinrichtung	[1985/48]
	English:	Instruction prefetch system for conditional branch instruction for central processor unit	[1985/48]
	French:	Système de recherche préalable d'instruction pour instructions de saut conditionnelles dans un processeur central	[1985/48]
Examination procedure	28.07.1988	Examination requested [1988/38]
	27.03.1990	Despatch of a communication from the examining division (Time limit: M06)
	12.09.1990	Reply to a communication from the examining division
	29.01.1991	Despatch of a communication from the examining division (Time limit: M02)
	27.02.1991	Despatch of a communication from the examining division (Time limit: M04)
	20.06.1991	Reply to a communication from the examining division
	19.09.1991	Despatch of a communication from the examining division (Time limit: M06)
	24.01.1992	Reply to a communication from the examining division
	16.04.1992	Despatch of communication of intention to grant (Approval: Yes)
	19.06.1992	Communication of intention to grant the patent
	19.08.1992	Fee for grant paid
	19.08.1992	Fee for publishing/printing paid
Opposition(s)	17.09.1993	No opposition filed within time limit [1993/49]
Fees paid	Renewal fee
	26.05.1987	Renewal fee patent year 03
	20.05.1988	Renewal fee patent year 04
	18.05.1989	Renewal fee patent year 05
	30.04.1990	Renewal fee patent year 06
	31.12.1990	Renewal fee patent year 07
	15.04.1992	Renewal fee patent year 08
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 Tooltip	BE	16.12.1992
	CH	16.12.1992
	LI	16.12.1992
	NL	16.12.1992
	SE	16.12.1992
	[1997/17]
Former [1993/38]	BE	16.12.1992
	CH	16.12.1992
	LI	16.12.1992
	NL	16.12.1992
	SE	16.12.1992
Former [1993/29]	CH	16.12.1992
	LI	16.12.1992
	NL	16.12.1992
	SE	16.12.1992
Former [1993/27]	CH	16.12.1992
	LI	16.12.1992
	NL	16.12.1992
Former [1993/23]	CH	16.12.1992
	LI	16.12.1992
Documents cited:	Search	[A]GB2011682 (HONEYWELL INF SYSTEMS);
		[A]FR2079020 (BURROUGHS CORP)
		[X] - COMPUTER, vol. 17, no. 1, January 1984, pages 6-22, Long Beach, California, US; J.K.F. LEE et al.: "Branch prediction strategies and branch target buffer design"
	Examination	US4236206

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