IP Library Granted Patent US 4,404,155
Granted Patent Utility
US 4,404,155 · App. 06/345,274

Method of forming gas chromatographic supports

Inventors: Christian John Miga, Millard Mills
Patented Case View Patent ↗
Granted: Sep 13, 1983 Filed: Feb 3, 1982
Inventors
Christian John Miga
Millard Mills
Assignee (at issue)
Manville Service 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.

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 4,404,155
App. No.
06/345,274
Filed
1982-02-03
Granted
1983-09-13
Kind
A