Granted Patent
Utility
US 5,211,428 · App. 07/848,268
Gas pipe slip boot
Inventors:
Gerald G. Emerson, Kenneth E. Schick
Patented Case
View Patent ↗
Granted: May 18, 1993
Filed: Mar 9, 1992
Inventors
Gerald G. Emerson
Kenneth E. Schick
Assignee (at issue)
Serrot Corporation
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.