Patent US2513312A successfully refreshed from Google Patents.
US2513312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymer of vinyl fluoride and chlorotrifluoroethylene
Assignee: EIDP Inc
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Filing: 1944-06-08
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Granted: 1950-07-04
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Expires: 1964-06-08
Abstract
No abstract record available.
Inventors
- 👤 William E Hanford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:49
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A COMPOSITION OF MATTER COMPRISING THE COPOLYMERIZATION PRODUCT OF A MIXTURE OF CHLOROTRIFLUOROETHYLENE AND VINYL FLUORIDE, SAID MIXTURE CONTAINING FROM 5% TO 95% CHLOROTRIFLUOROETHYLENE BASED ON THE WEIGHT OF THE CHLOROTRIFLUOROETHYLENE AND THE VINYL FLORIDE.
Claim 2
Dependent Claim
35 words
A COMPOSITION OF MATTER COMPRISING THE COPOLYMERIZATION PRODUCT OF A MIXTURE OF CHLOROTRIFLUOROETHYLENE AND VINYL FLUORIDE, SAID MIXTURE CONTAINING FROM 5% TO 95% CHLOROTRIFLUOROETHYLENE BASED ON THE WEIGHT OF THE CHLOROTRIFLUOROETHYLENE AND THE VINYL FLORIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-03 | 1954-01-02 | 1954-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-03 | 1958-01-02 | 1958-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-03 | 1962-01-02 | 1962-07-04 | $7700.00 | Window Closed / Lapsed |