IP Library Granted Patent US 4,047,547
Granted Patent Utility
US 4,047,547 · App. 05/668,950

Method of filling, sampling and sealing an aseptic tank

Inventors: Steve A. Rechtsteiner, Philip E. Nelson, John R. Heron
Patented Case View Patent ↗
Granted: Sep 13, 1977 Filed: Mar 22, 1976
Inventors
Steve A. Rechtsteiner
Philip E. Nelson
John R. Heron

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 4,047,547
App. No.
05/668,950
Filed
1976-03-22
Granted
1977-09-13
Kind
A