Patent US2874142A successfully refreshed from Google Patents.
US2874142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polytrifluorochloroethylene and barium peroxide
Assignee: 3M Co
•
Filing: 1955-04-20
•
Granted: 1959-02-17
•
Expires: 1975-04-20
Abstract
No abstract record available.
Inventors
- 👤 William E Hanford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:39
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A NOVEL PLASTIC COMPOSITION CONSISTING OF AN ADMIXTURE OF A POLYMER OF TRIFLUOROCHLOROETHYLENE SELECTED FROM THE GROUP CONSISTING OF THE HOMOPOLYMER OF TRIFLUOROCHLOROETHYLENE AND COPOLYMERS OF TRIFLUOROCHLOROETHYLENE AND VINYLIDENE FLUORIDE WHICH CONTAIN NOT MORE THAN 5 MOL PERCENT OF VINYLIDENE FLUORIDE AND BETWEEN ABOUT 0.05 AND ABOUT 20 PARTS OF BARIUM PEROXIDE PER 100 PARTS OF SAID POLYMER, SAID POLYMER BEING INERT TO CHEMICAL CROSS-LINKING IN THE PRESENCE OF BARIUM PEROXIDE.
Claim 2
Dependent Claim
71 words
A NOVEL PLASTIC COMPOSITION CONSISTING OF AN ADMIXTURE OF A POLYMER OF TRIFLUOROCHLOROETHYLENE SELECTED FROM THE GROUP CONSISTING OF THE HOMOPOLYMER OF TRIFLUOROCHLOROETHYLENE AND COPOLYMERS OF TRIFLUOROCHLOROETHYLENE AND VINYLIDENE FLUORIDE WHICH CONTAIN NOT MORE THAN 5 MOL PERCENT OF VINYLIDENE FLUORIDE AND BETWEEN ABOUT 0.05 AND ABOUT 20 PARTS OF BARIUM PEROXIDE PER 100 PARTS OF SAID POLYMER, SAID POLYMER BEING INERT TO CHEMICAL CROSS-LINKING IN THE PRESENCE OF BARIUM PEROXIDE.
References Cited (Backward Citations)
US2077429A
Cited
US2493390A
Cited
US2507142A
Cited
US2563772A
Cited
US2600202A
Cited
US2643988A
Cited
US2789960A
Cited
US2789959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |