Granted Patent
Utility
US 4,839,124 · App. 07/161,553
Reduction of carboxyl end groups in polyester fibers with lactim ethers
Inventors:
Yousef Mohajer, Stanley D. Lazarus, Robert S. Cooke
Patented Case
View Patent ↗
Granted: Jun 13, 1989
Filed: Feb 29, 1988
Inventors
Yousef Mohajer
Stanley D. Lazarus
Robert S. Cooke
Assignee (at issue)
AlliedSignal, 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.