Granted Patent
Utility
US 4,740,552 · App. 06/829,265
Alloys of styrenic resins and polyamides
Inventors:
Thomas S. Grant, David V. Howe
Patented Case
View Patent ↗
Granted: Apr 26, 1988
Filed: Feb 14, 1986
Inventors
Thomas S. Grant
David V. Howe
Assignee (at issue)
Borg-Warner Chemicals, 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.