Granted Patent
Utility
US 6,560,042 · App. 09/939,658
Wide-angle lens system and a focusing method thereof
Inventors:
Masayuki Murata, Takayuki Ito
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Aug 28, 2001
Inventors
Masayuki Murata
Takayuki Ito
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.