Patent
   D326261
Priority
Oct 22 1990
Filed
Mar 08 1991
Issued
May 19 1992
Expiry
May 19 2006
Assg.orig
Entity
unknown
30
5
n/a
The ornamental design for a trackball for computer, as shown and described.

FIG. 1 is a top front and left side isometric view of a trackball for computer showing our new design;

FIG. 2 is a bottom front and right side isometric view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a rear elevational view thereof;

FIG. 8 is a top front and left side isometric view of a second embodiment of our new design;

FIG. 9 is a top plan view thereof;

FIG. 10 is a top front and right side isometric view of a third embodiment of our new design;

FIG. 11 is a bottom front and left side isometric view thereof;

FIG. 12 is a bottom plan view of the second embodiment shown in FIG. 8;

FIG. 13 is a rear elevational view thereof;

FIG. 14 is a right side elevational view thereof; and,

FIG. 15 is a front elevational view thereof.

The cord is shown in broken lines in the figures for illustrative purposes only and forms no part of the claimed design and the rear elevational view of the third embodiment is similar to the rear elevational view of the second embodiment shown in FIG. 13.

Nelson, Michael D., Bradley, Paul, Yurchenco, James R., Paull, Mike M., Ashmun, Stuart, Garthwaite, Charlie, Cameron, Bridget, Stephan, Allan H., Fulton, Elinor J.

Patent Priority Assignee Title
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Patent Priority Assignee Title
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Mar 08 1991Microsoft Corporation(assignment on the face of the patent)
Apr 12 1991YURCHENCO, JAMES R MICROSOFT CORPORATION, A CORP OF DELAWAREASSIGNMENT OF ASSIGNORS INTEREST 0057090214 pdf
Apr 12 1991BRADLEY, PAULMICROSOFT CORPORATION, A CORP OF DELAWAREASSIGNMENT OF ASSIGNORS INTEREST 0057090214 pdf
Apr 29 1991FULTON, ELINOR J MICROSOFT CORPORATION, A CORP OF DELAWAREASSIGNMENT OF ASSIGNORS INTEREST 0057090214 pdf
May 01 1991STEPHAN, ALLAN H MICROSOFT CORPORATION, A CORP OF DELAWAREASSIGNMENT OF ASSIGNORS INTEREST 0057090214 pdf
May 01 1991CAMERON, BRIDGETMICROSOFT CORPORATION, A CORP OF DELAWAREASSIGNMENT OF ASSIGNORS INTEREST 0057090214 pdf
May 01 1991GARTHWAITE, CHARLIEMICROSOFT CORPORATION, A CORP OF DELAWAREASSIGNMENT OF ASSIGNORS INTEREST 0057090214 pdf
May 01 1991ASHMUN, STUARTMICROSOFT CORPORATION, A CORP OF DELAWAREASSIGNMENT OF ASSIGNORS INTEREST 0057090214 pdf
May 01 1991NELSON, MICHAEL D MICROSOFT CORPORATION, A CORP OF DELAWAREASSIGNMENT OF ASSIGNORS INTEREST 0057090214 pdf
May 02 1991PAULL, MIKE M MICROSOFT CORPORATION, A CORP OF DELAWAREASSIGNMENT OF ASSIGNORS INTEREST 0057090214 pdf
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