Patent Application
Utility
PCT National Stage
App. No. 09/786,426
· Confirmation No. 1327
ACID COLLOID IN A MICROPARTICLE SYSTEM USED IN PAPERMAKING
Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
View Patent ↗
Inventors
Charles R. Hunter
Sewickley, PA
Craig W. Vaughan
Freedom, PA
Attorneys & Agents of Record
Classification
USPC
162/164.1
Prosecution
- Examiner
- FORTUNA, JOSE A
- Art Unit
- 1731
- Customer No.
- 26689
- Docket No.
- TJK/157
- Confirmation No.
- 1327
Patent Term Adjustment
0days
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2017-02-28
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2004-03-18
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2004-03-01
from
CALGON CORPORATION
GRANT OF SECURITY INTEREST
Recorded 2003-12-08
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Quick Facts
- App. No.
- 09/786,426
- Filed
- 2001-07-05
- Granted
- 2004-04-13
- Examiner
- FORTUNA, JOSE A
- Art Unit
- 1731
- PTA
- 0 days
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