Patent US3330776A successfully refreshed from Google Patents.
US3330776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trichlorotrifluoroethane hexafluoropropanol composition
Assignee: EIDP Inc
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Filing: 1964-12-08
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Granted: 1967-07-11
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Expires: 1984-12-08
Abstract
No abstract record available.
Inventors
- 👤 David G Coe
- 👤 Bennett Edward James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:37
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A SUBSTANTIALLY CONSTANT BOILING COMPOSITION CONSISTING ESSENTIALLY OF 60-80% BY WEIGHT 1,1,2-TRICHLOROTRIFLUOROETHANE AND 40-20% BY WEIGHT 1,1,1,3,3,3-HEXAFLUOROPROPANOL.
Claim 2
Dependent Claim
17 words
A SUBSTANTIALLY CONSTANT BOILING COMPOSITION CONSISTING ESSENTIALLY OF 60-80% BY WEIGHT 1,1,2-TRICHLOROTRIFLUOROETHANE AND 40-20% BY WEIGHT 1,1,1,3,3,3-HEXAFLUOROPROPANOL.
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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |