IP Library › Granted Patent US 4,696,977
Granted Patent Utility
US 4,696,977 · App. 06/775,544

Process for preparing nylon block copolymers

Inventors: Albert Y. Garner, James D. Gabbert, Ross M. Hedrick
Patented Case View Patent ↗
Granted: Sep 29, 1987 Filed: Sep 12, 1985
Inventors
Albert Y. Garner
James D. Gabbert
Ross M. Hedrick
Assignee (at issue)
DSM Rim Nylon V.O.F.

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,696,977
App. No.
06/775,544
Filed
1985-09-12
Granted
1987-09-29
Kind
A