IP Library › Granted Patent US 4,656,907
Granted Patent Utility
US 4,656,907 · App. 06/771,512

Paper punch

Inventor: Karl Hymmen
Patented Case View Patent ↗
Granted: Apr 14, 1987 Filed: Aug 30, 1985
Inventor
Karl Hymmen
Assignee (at issue)
VeloBind, Inc.

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.

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Quick Facts
Patent No.
US 4,656,907
App. No.
06/771,512
Filed
1985-08-30
Granted
1987-04-14
Kind
A