IP Library Granted Patent US 4,138,281
Granted Patent Utility
US 4,138,281 · App. 05/848,670

Production of explosive emulsions

Inventors: Robert S. Olney, Charles Gordon Wade
Patented Case View Patent ↗
Granted: Feb 6, 1979 Filed: Nov 4, 1977
Inventors
Robert S. Olney
Charles Gordon Wade

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 4,138,281
App. No.
05/848,670
Filed
1977-11-04
Granted
1979-02-06
Kind
A