US2867601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft copolymer of unsaturated monomer and copolymer of fluorinated olefin and fermaleic acid and process of preparing same
Assignee: 3M Co
•
Filing: 1958-07-07
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Granted: 1959-01-06
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Expires: 1978-07-07
Abstract
No abstract record available.
Inventors
- 👤 Billy F Landrum
- 👤 Jr Ralph L Herbst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:07
CPC Classifications
C; C08; C08F; C08F259/00; C08F259/08; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A GRAFT COPOLYMER COMPRISING (A) A COPOLYMER OF A HALOGEN SUBSTITUTED MONOOLEFIN CONTAINING AT LEAST TWO FLUORINE ATOMS AND CONTAINING NO HALOGEN OTHER THAN FLUORINE, CHLORINE AND BROMINE, AD PERMALEIC ACID AND (B) AN ETHYLENICALLY UNSATURATED MONOMER.
Claim 2
Dependent Claim
37 words
A GRAFT COPOLYMER COMPRISING (A) A COPOLYMER OF A HALOGEN SUBSTITUTED MONOOLEFIN CONTAINING AT LEAST TWO FLUORINE ATOMS AND CONTAINING NO HALOGEN OTHER THAN FLUORINE, CHLORINE AND BROMINE, AD PERMALEIC ACID AND (B) AN ETHYLENICALLY UNSATURATED MONOMER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |