Granted Patent
Utility
US 4,208,463 · App. 05/656,116
Non-durable flame-repellent finish for synthetic fabrics and synthetic-cotton blends
Inventors:
Sarwan K. Kakar, John J. Cramer
Patented Case
View Patent ↗
Granted: Jun 17, 1980
Filed: Feb 9, 1976
Inventors
Sarwan K. Kakar
John J. Cramer
Assignee (at issue)
BASF Wyandotte 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.