Granted Patent
Utility
US 5,146,989 · App. 07/671,812
Apparatus for recovering a wellhead
Inventor:
Geoffrey O. Rouse
Patented Case
View Patent ↗
Granted: Sep 15, 1992
Filed: Apr 2, 1991
Inventor
Geoffrey O. Rouse
Assignee (at issue)
Homco International, 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.