Granted Patent
Utility
US 6,361,652
· Confirmation No. 2937
Method of increasing drainage 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
Prosecution
- Examiner
- FORTUNA, JOSE A
- Art Unit
- 1731
- Docket No.
- 5410-D3
- Confirmation No.
- 2937
Publication
- Pub. No.
- US20010023752A1
- Pub. Date
- 2001-09-27
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
Monitor This Case
Get email alerts when status or documents change.
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 application's details
Quick Facts
- Patent No.
- US 6,361,652
- App. No.
- 09/839,015
- Filed
- 2001-04-22
- Granted
- 2002-03-26
- Pub. No.
- US20010023752A1
- Examiner
- FORTUNA, JOSE A
- Art Unit
- 1731
- PTA
- 0 days
External Links