Granted Patent
Utility
US 5,015,708 · App. 07/373,012
Precipitation polymerization of terpolymers of a vinyl lactam, a polymerizable carboxylic acid and a hydrophobic monomer in an aliphatic hydrocarbon solvent
Inventors:
Jenn S. Shih, Terry E. Smith, Robert B. Login
Patented Case
View Patent ↗
Granted: May 14, 1991
Filed: Jun 26, 1989
Inventors
Jenn S. Shih
Terry E. Smith
Robert B. Login
Assignee (at issue)
GAF Chemicals 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.