The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 1996
Filed:
Sep. 16, 1992
Applicant:
Inventors:
Patrick J Keane, Grapevine, TX (US);
Kathy P Mitchell, Trophy Club, TX (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395700 ; 364D / ; 364286 ;
Abstract
A reusable isolated undo/redo service provides application programs with an undo/redo function. Each application that will use the service is registered. Whenever a registered application performs an action that can be undone, it forms a packet and gives the packet to the service. Whenever the user of a registered application wishes to undo or redo an action, the undo or redo processing is performed by the service.