Granted Patent
Utility
US 6,517,677
· Confirmation No. 6214
METHOD OF IMPROVING RETENTION AND DRAINAGE IN A PAPERMAKING PROCESS USING LOW MOLECULAR WEIGHT CATIONIC DISPERSION POLYMERS
Patented Case
View Patent ↗
Inventors
Richard P. Cardile
Geneva, IL
John W. Sparapany
Rollingbrook, IL
Cathy C. Johnson
Geneva, IL
Angela P. Zagala
Naperville, IL
Attorneys & Agents of Record
Classification
USPC
210/708
C02F1/56
C02F11/147
C02F11/148
C02F1/682
C02F2103/001
C08F220/56
C08F220/34
Prosecution
- Examiner
- HRUSKOCI, PETER A
- Art Unit
- 1724
- Docket No.
- 5519-P1
- Confirmation No.
- 6214
Patent Term Adjustment
-5days
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 2002-03-11
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Quick Facts
- Patent No.
- US 6,517,677
- App. No.
- 10/035,872
- Filed
- 2002-01-04
- Granted
- 2003-02-11
- Examiner
- HRUSKOCI, PETER A
- Art Unit
- 1724
- PTA
- -5 days
External Links