IP Library Granted Patent US 4,659,544
Granted Patent Utility
US 4,659,544 · App. 06/620,041

Unitary structure of tag gas capsule and end cap of nuclear fuel cladding tube

Inventors: Takeo Sawayama, Izumi Iimura, Hisaya Miyazaki
Patented Case View Patent ↗
Granted: Apr 21, 1987 Filed: Jun 12, 1984
Inventors
Takeo Sawayama
Izumi Iimura
Hisaya Miyazaki
Assignee (at issue)
Doryokuro Kakunenryo Kaihatsu Jigyodan

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 4,659,544
App. No.
06/620,041
Filed
1984-06-12
Granted
1987-04-21
Kind
A