Patent Assignment
Reel/Frame 004667/0004
Assignment of Assignors Interest.
Recorded: 1987-02-09
Pages: 2
Assignor
SERVICEMASTER INVESTMENT COMPANY, A DE. CORP.
Executed: 1986-12-30
Assignee
SERVICEMASTER COMPANY L.P., THE, A DE. LIMITED PARTNERSHIP
2300 WARRENVILLE ROAD, DOWNERS GROVE, ILLINOIS, 60515
Covered Properties
(5)
Method of Shampooing Carpet on Location
Patent:
3,728,075 →
Application:
05/133,601 →
Method for Cleaning Carpets
Patent:
3,919,729 →
Application:
05/493,917 →
Cleaning Tool
Patent:
4,270,238 →
Application:
06/058,485 →
Sanitizer Attachment for a Mobile Floor Cleaner
Patent:
4,429,432 →
Application:
06/266,798 →
Rotary Floor Cleaner
Patent:
4,400,843 →
Application:
06/310,116 →
Related Assignments
(5)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Jan 22, 1982
From: BLOMGREN, ROLAND A.
To: SERVICEMASTER INDUSTRIES, INC., A CORP. OF DE.
Reel/Frame 003944/0216 →
Assignment of Assignors Interest.
Sep 16, 1983
From: COPELAND, WILLIAM M.; BLOMGREN, ROLAND A.; SHALLENBERG, ROBERT L.
To: SERVICEMASTER INDUSTRIES, INC., A DE CORP.
Reel/Frame 004170/0906 →
Assignment of Assignors Interest.
Feb 2, 1987
From: SERVICEMASTER INDUSTRIES INC., A CORP. OF DE.
To: SERVICEMASTER INVESTMENT COMPANY, CORPORATE TRUST CENTER, A DE. CORP.
Reel/Frame 004666/0908 →
Merger
Feb 6, 2014
From: THE SERVICEMASTER COMPANY LIMITED PARTNERSHIP
To: THE SERVICEMASTER COMPANY
Reel/Frame 032161/0529 →
Merger
Feb 6, 2014
From: THE SERVICEMASTER COMPANY
To: THE SERVICEMASTER COMPANY, LLC
Reel/Frame 032161/0703 →