Granted Patent
Utility
US 4,292,252 · App. 06/061,262
Process for preparing organotin esters
Inventors:
John D. Collins, Donald A. Wood
Patented Case
View Patent ↗
Granted: Sep 29, 1981
Filed: Jul 27, 1979
Inventors
John D. Collins
Donald A. Wood
Assignee (at issue)
Tenneco Chemicals, 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.