Granted Patent
Utility
US 4,100,271 · App. 05/661,612
Clear, water-miscible, liquid pharmaceutical vehicles and compositions which gel at body temperature for drug delivery to mucous membranes
Inventor:
Joseph Z. Krezanoski
Patented Case
View Patent ↗
Granted: Jul 11, 1978
Filed: Feb 26, 1976
Inventor
Joseph Z. Krezanoski
Assignee (at issue)
Cooper Laboratories, 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.