PTO Wrapper PDF
Dossier Espace Google
Patent
   D271667
Priority
Feb 05 1980
Filed
Oct 20 1981
Issued
Dec 06 1983
Expiry
Dec 06 1997
Inventors
Sidrak, Fa…
Assg.orig
Assg.curr
Entity
unknown
Referenced by
1
References
12
Maint.:
n/a
The ornamental design for a protractor, substantially as shown and described.

FIG. 1 is a top plan view of a protractor showing my new design, the bottom being plain and unornamented;

FIG. 2 is a front elevational view thereof.
INVENTORS:

Sidrak, Fahim R.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D562707, Dec 18 2006 Line angle indicator
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
1264633,
1961500,
2011282,
2735182,
3579841,
621177,
665316,
CH121364,
129583,
137459,
157458,
D267932, Jan 26 1981 Protractor
ASSIGNMENT RECORDS    Assignment records on the USPTO
Executed onAssignorAssigneeConveyanceFrameReelDoc
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule