US3255131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorochemical-containing varnishes
Assignee: 3M Co
•
Filing: 1962-04-10
•
Granted: 1966-06-07
•
Expires: 1982-04-10
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Ahlbrecht
- 👤 Norman J Monson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:06
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/08; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/2805; C08G18/288; C08G18/2885; C08G59/00; C08G59/18; C08G59/40; C08G59/44; C08G59/62; C08G63/00; C08G63/68; C08G63/682; C08G63/6824; C08G63/685; C08G63/6854; C08G63/6858; C08G63/688; C08G63/6884; C08G63/6888
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A FLUORINE CONTAINING RESIN WHICH COMPRISES A CONDENSATION POLYESTER RESIN, EPOXY RESIN OR URETHANE RESIN HAVING AVAILABLE HYROXYL, CARBOXYL, ISOCYANATE OR EPOXY GROUPS AND HAVING BONDED THERETO THROUGH SAID AVAILABLE GROUPS FROM ABOUT 1 TO ABOUT 2K WEIGHT PERCENT, BASED ON TOTAL RESIN WEIGHT, OF A FLUOROCHEMICAL SUBSTITUENT HAVING THE FORMULA
Claim 2
Dependent Claim
51 words
A FLUORINE CONTAINING RESIN WHICH COMPRISES A CONDENSATION POLYESTER RESIN, EPOXY RESIN OR URETHANE RESIN HAVING AVAILABLE HYROXYL, CARBOXYL, ISOCYANATE OR EPOXY GROUPS AND HAVING BONDED THERETO THROUGH SAID AVAILABLE GROUPS FROM ABOUT 1 TO ABOUT 2K WEIGHT PERCENT, BASED ON TOTAL RESIN WEIGHT, OF A FLUOROCHEMICAL SUBSTITUENT HAVING THE FORMULA
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |