Patent US3471241A successfully refreshed from Google Patents.
US3090818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorofluoroalkane compositions
Assignee: EIDP Inc
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Filing: 1960-05-11
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Granted: 1963-05-21
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Expires: 1980-05-11
Abstract
No abstract record available.
Inventors
- 👤 Laurence J Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:22
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38; C07C17/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A COMPOSITION RESISTANT TO REACTION WITH PRIMARY AND SECONDARY ALKANOLS WHICH CONSISTS ESSENTIALLY OF A CHLOROFLUOROALKANE OF THE GROUP CONSISTING OF TRICHLOROFLUOROMETHANE, TRICHLOROTRIFLUORETHANES AND TETRACHLORIDIFLUOROETHANES AND FROM ABOUT 0.1% TO ABOUT 5% BY WEIGHT OF AN OLEFINIC COMPOUND OF THE GROUP CONSISTING OF PROPYLENE, ISOBUTYLENE, 1-BUTENE, BUTADIENE, ISOPRENE, VINYL CHLORIDE, VINYL FLUORIDE, AND METHYL METHACRYLATE.
Claim 2
Dependent Claim
55 words
A COMPOSITION RESISTANT TO REACTION WITH PRIMARY AND SECONDARY ALKANOLS WHICH CONSISTS ESSENTIALLY OF A CHLOROFLUOROALKANE OF THE GROUP CONSISTING OF TRICHLOROFLUOROMETHANE, TRICHLOROTRIFLUORETHANES AND TETRACHLORIDIFLUOROETHANES AND FROM ABOUT 0.1% TO ABOUT 5% BY WEIGHT OF AN OLEFINIC COMPOUND OF THE GROUP CONSISTING OF PROPYLENE, ISOBUTYLENE, 1-BUTENE, BUTADIENE, ISOPRENE, VINYL CHLORIDE, VINYL FLUORIDE, AND METHYL METHACRYLATE.
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |