US3700646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyfluoroisoalkoxy-alkyl sulfides and polysulfides
Assignee: Honeywell International Inc
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Filing: 1971-05-03
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Granted: 1972-10-24
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Expires: 1991-05-03
Abstract
Abstract WHEREIN RF AND R''F ARE POLYFLUOROISOALKOXYALKYL RADICALS AND X IS AN INTEGER 1 TO 8. THESE NOVEL COMPOUNDS ARE USEFUL AS OXIDATION-RESISTANT LUBRICANTS, ADDITIVES TO LUBRICANTS AND CUTTING OILS, AND INTERMEDIATES IN THE PREPARATION OF VALUABLE SURFACE ACTIVE COMPOUNDS. RF-SX-R''F NOVEL SULFIDES AND POLYSULFIDES OF THE FORMULA
Inventors
- 👤 Louis G Anello
- 👤 Richard F Sweeney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:25
CPC Classifications
C; C10; C10M; C10M3/00; C07; C07C; C07C323/00; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/084; C10N; C10N2040/00; C10N2040/06; C10N2040/20; C10N2040/22; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |