IP Library › Granted Patent US 4,643,223
Granted Patent Utility
US 4,643,223 · App. 06/829,255

Solenoid valve

Inventors: Tatsuhiko Abe, Nobukazu Takagi
Patented Case View Patent ↗
Granted: Feb 17, 1987 Filed: Feb 14, 1986
Inventors
Tatsuhiko Abe
Nobukazu Takagi
Assignee (at issue)
Diesel Kiki Co., 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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,643,223
App. No.
06/829,255
Filed
1986-02-14
Granted
1987-02-17
Kind
A