Granted Patent
Utility
US 6,552,671 · App. 10/025,613
Brush encoder with resilient contact strips
Inventors:
Makoto Iikawa, Masao Matsuzaki, Masashi Takahashi
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Dec 26, 2001
Inventors
Makoto Iikawa
Masao Matsuzaki
Masashi Takahashi
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.