Granted Patent
Utility
US 6,361,653
· Confirmation No. 2941
Method of increasing retention in papermaking using colloidal borosilicates
Inventors
Bruce A. Keiser
Naperville, IL
James E. Whitten
Naperville, IL
Attorneys & Agents of Record
Classification
USPC
162/181.6
C01B35/10
D21H17/68
D21H21/10
Prosecution
- Examiner
- FORTUNA, JOSE A
- Art Unit
- 1731
- Docket No.
- 5410-D5
- Confirmation No.
- 2941
Publication
- Pub. No.
- US20010030032A1
- Pub. Date
- 2001-10-18
Patent Term Adjustment
0days
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2017-02-28
SECURITY AGREEMENT
Recorded 2009-05-18
from
NALCO COMPANY
GRANT OF SECURITY INTEREST
Recorded 2003-12-08
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2001-04-22
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Quick Facts
- Patent No.
- US 6,361,653
- App. No.
- 09/839,017
- Filed
- 2001-04-22
- Granted
- 2002-03-26
- Pub. No.
- US20010030032A1
- Examiner
- FORTUNA, JOSE A
- Art Unit
- 1731
- PTA
- 0 days
External Links