Patent Assignment
Reel/Frame 003855/0398
Assignment of Assignors Interest.
Recorded: 1981-06-01
Pages: 1
Assignor
HEIL DONALD J.
Executed: 1981-02-13
Assignee
AMERICAN HOSPITAL SUPPLY CORPORATION
A CORP. OF IL., EVANSTON, ILLINOIS, 60201
Covered Property
(1)
Water/Air Spray System for Dental Handpiece
Patent:
4,340,366 →
Application:
06/236,642 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Sep 20, 1982
From: AMERICAN HOSPITAL SUPPLY CORPORATION A CORP. OF ILL.
To: SYBRON CORPORATION, A CORP. OF N.Y.
Reel/Frame 004051/0902 →
Security Interest
Dec 28, 1987
From: MIDWEST DENTAL CORPORATION
To: LAKE SHORE NATIONAL BANK, 605 NORTH MICHIGAN AVENUE, CHICAGO, ILLINOIS 60611
Reel/Frame 004816/0449 →
Assignment of Assignors Interest.
Dec 28, 1987
From: NALGE COMPANY (A DE. CORP.)
To: MIDWEST DENTAL CORPORATION, A DE. CORP.
Reel/Frame 004818/0867 →
Released by Secured Party
Sep 5, 1990
From: LAKE SHORE NATIONAL BANK
To: MIDWEST DENTAL PRODUCTS CORPORATION
Reel/Frame 005458/0604 →
Assignment of Assignor's Interest
Sep 29, 1994
From: MIDWEST DENTAL PRODUCTS CORPORATION
To: DENTSPLY RESEARCH & DEVELOPMENT CORP.
Reel/Frame 007152/0151 →