Granted Patent
Utility
US 5,321,544 · App. 07/754,650
Electrochromic structures and methods
Inventors:
V. D. Parkhe, Forrest A. Trumbore, John E. Van Dine
Patented Case
View Patent ↗
Granted: Jun 14, 1994
Filed: Sep 4, 1991
Inventors
V. D. Parkhe
Forrest A. Trumbore
John E. Van Dine
Assignee (at issue)
Sun Active Glass Electrochromics, Inc.
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.