IP Library Granted Patent US 4,829,374
Granted Patent Utility
US 4,829,374 · App. 07/119,826

Surface inspection apparatus

Inventors: Seiichi Miyamoto, Masaru Hanatani, Yo Tajima
Patented Case View Patent ↗
Granted: May 9, 1989 Filed: Nov 12, 1987
Inventors
Seiichi Miyamoto
Masaru Hanatani
Yo Tajima
Assignee (at issue)
Kanzaki Paper Manufacturing 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 4,829,374
App. No.
07/119,826
Filed
1987-11-12
Granted
1989-05-09
Kind
A