IP Library › Granted Patent US 4,736,527
Granted Patent Utility
US 4,736,527 · App. 06/822,678

Apparatus for the heat treatment of powdery material

Inventors: Tutomu Iwamoto, Kazuhiro Kubouchi
Patented Case View Patent ↗
Granted: Apr 12, 1988 Filed: Jan 23, 1986
Inventors
Tutomu Iwamoto
Kazuhiro Kubouchi
Assignee (at issue)
Konishiroku Photo Industry 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 4,736,527
App. No.
06/822,678
Filed
1986-01-23
Granted
1988-04-12
Kind
A