IP Library › Granted Patent US 4,606,175
Granted Patent Utility
US 4,606,175 · App. 06/780,178

Bag closing and sealing machine

Inventor: Charles E. De Crane
Patented Case View Patent ↗
Granted: Aug 19, 1986 Filed: Sep 26, 1985
Inventor
Charles E. De Crane

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 4,606,175
App. No.
06/780,178
Filed
1985-09-26
Granted
1986-08-19
Kind
A