Granted Patent
Utility
US 6,255,439 · App. 09/652,185
1,1-Bis(4-hydroxyphenyl)-3-alkylcyclohexanes, method for their preparation and polycarbonates prepared therefrom
Inventors:
Chilukuri Ver Avadhani, Prakash Purushottam Wadgaonkar, Swaminathan Sivaram
Patented Case
View Patent ↗
Granted: Jul 3, 2001
Filed: Aug 31, 2000
Inventors
Chilukuri Ver Avadhani
Prakash Purushottam Wadgaonkar
Swaminathan Sivaram
Assignee (at issue)
General Electric Company
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.