Granted Patent
Utility
US 4,539,344 · App. 06/368,273
Thermally stable sealant composition
Inventors:
Joel V. Van Ornum, Jessie T. Chiu
Patented Case
View Patent ↗
Granted: Sep 3, 1985
Filed: Apr 14, 1982
Inventors
Joel V. Van Ornum
Jessie T. Chiu
Assignee (at issue)
Rockcor, 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.