Granted Patent
Utility
US 6,545,824 · App. 09/783,304
Wide-angle lens system
Inventor:
Takayuki Sensui
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Feb 15, 2001
Inventor
Takayuki Sensui
Assignee (at issue)
Pentax 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.