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:
Aug. 26, 2008
Filed:
Oct. 19, 2004
Lakshmi Narayanan Thanu, Sammamish, WA (US);
Peter Eberhardy, Seattle, WA (US);
Vijay Govind Baliga, Redmond, WA (US);
Lakshmi Narayanan Thanu, Sammamish, WA (US);
Peter Eberhardy, Seattle, WA (US);
Vijay Govind Baliga, Redmond, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A method and system provides reversibility of an operation performed by a user of an application program and associated with a modification to an object model of the application program, such as a spreadsheet program or other office productivity application program. The top item of a first undo stack associated with the application program is determined, saved, and copied to a second stack functioning as a replicated undo stack. According to one aspect of the invention, such steps are performed prior to calling an object model method that clears the first undo stack. The top item of the second replicated undo stack is placed back onto the first undo stack.