Granted Patent
Utility
US 4,588,769 · App. 06/696,957
Multipurpose fire resistant sealing and caulking compound
Inventors:
Olavi E. Vehmas, Bernard Kotyuk, John M. Pallo
Patented Case
View Patent ↗
Granted: May 13, 1986
Filed: Jan 31, 1985
Inventors
Olavi E. Vehmas
Bernard Kotyuk
John M. Pallo
Assignee (at issue)
Manville Sales 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.