Granted Patent
Utility
US 6,683,515 · App. 09/666,814
Surface-acoustic-wave filter providing outputs with different delay times and communications unit
Inventors:
Hiroyuki Nakamura, Kenji Monma, Toru Yamada, Kazunori Nishimura
Patented Case
View Patent ↗
Granted: Jan 27, 2004
Filed: Sep 21, 2000
Inventors
Hiroyuki Nakamura
Kenji Monma
Toru Yamada
Kazunori Nishimura
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
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.