IP Library Granted Patent US 5,316,985
Granted Patent Utility
US 5,316,985 · App. 07/804,069

Suppression of crystal growth in low dielectric inorganic composition using ultrafine alumina

Inventors: Jau-Ho Jean, Tapan K. Gupta
Patented Case View Patent ↗
Granted: May 31, 1994 Filed: Dec 9, 1991
Inventors
Jau-Ho Jean
Tapan K. Gupta
Assignee (at issue)
Aluminum Company of America

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 5,316,985
App. No.
07/804,069
Filed
1991-12-09
Granted
1994-05-31
Kind
A