IP Library › Granted Patent US 5,276,129
Granted Patent Utility
US 5,276,129 · App. 07/901,012

Polycarbonate containing terminal hydroxy groups, low sodium and chlorine content

Inventors: Takeshi Sakashita, Tomoaki Shimoda
Patented Case View Patent ↗
Granted: Jan 4, 1994 Filed: Jun 19, 1992
Inventors
Takeshi Sakashita
Tomoaki Shimoda
Assignee (at issue)
GE Plastics Japan Ltd.

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 5,276,129
App. No.
07/901,012
Filed
1992-06-19
Granted
1994-01-04
Kind
A