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US3117977A
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Selected 2, 4-bis (perhaloalkyl)-2, 4-difluoro-1, 3-dithietanes
Assignee: EIDP Inc
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Filing: 1959-08-17
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Granted: 1964-01-14
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Expires: 1979-08-17
Abstract
No abstract record available.
Inventors
- 👤 William J Middleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:09
CPC Classifications
C; C10; C10M; C10M3/00; C07; C07D; C07D339/00; C10M2219/00; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13; C10N2040/14; C10N2040/16; C10N2040/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A 2,4-BIS(PERHALOALKYL)-2,4-DIFLUORO-1,3-DITHIETANE WHEREIN EACH PERHALOALKYL GROUP CONTAINS ONE TO THREE CARBONS AND AT MOST ONE CHLORINE, THE REMAINDER OF THE HALOGEN BEING FLUORINE. 2. 2,4-BIS(TRIFLUOROMETHYL)-2,4-DIFLUORO-1,3-DITHIETANE.
Claim 2
Dependent Claim
25 words
A 2,4-BIS(PERHALOALKYL)-2,4-DIFLUORO-1,3-DITHIETANE WHEREIN EACH PERHALOALKYL GROUP CONTAINS ONE TO THREE CARBONS AND AT MOST ONE CHLORINE, THE REMAINDER OF THE HALOGEN BEING FLUORINE. 2. 2,4-BIS(TRIFLUOROMETHYL)-2,4-DIFLUORO-1,3-DITHIETANE.
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) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |