IP Library Granted Patent US 5,800,673
Granted Patent Utility
US 5,800,673 · App. 08/546,961

Stack type evaporator

Inventors: Nobuyuki Okuda, Masahiro Kojima
Patented Case View Patent ↗
Granted: Sep 1, 1998 Filed: Oct 23, 1995
Inventors
Nobuyuki Okuda
Masahiro Kojima
Assignee (at issue)
Showa Aluminum Corp.

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 5,800,673
App. No.
08/546,961
Filed
1995-10-23
Granted
1998-09-01
Kind
A