US3306853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibited poly(hexafluoropropylene oxide) oil compositions
Assignee: EIDP Inc
•
Filing: 1966-03-24
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Granted: 1967-02-28
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Expires: 1986-03-24
Abstract
No abstract record available.
Inventors
- 👤 Edward T Fogg
- 👤 William H Gumprecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:09
CPC Classifications
C; C10; C10M; C10M3/00; C10M2213/00; C10M2213/04; C10M2213/06; C10M2219/00; C10M2219/04; C10M2219/044
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
25 words
A POLY(HEXAFLUOROPROPYLENE OXIDE) OIL COMPOSITION WHICH COMPRISES A MAJOR AMOUNT OF BASE OIL SELECTED FROM THE GROUP CONSISTING OF POLY(HEXAFLUOROPROPYLENE OXIDE) OILS OF THE STRUCTURE
Claim 2
Dependent Claim
25 words
A POLY(HEXAFLUOROPROPYLENE OXIDE) OIL COMPOSITION WHICH COMPRISES A MAJOR AMOUNT OF BASE OIL SELECTED FROM THE GROUP CONSISTING OF POLY(HEXAFLUOROPROPYLENE OXIDE) OILS OF THE STRUCTURE
Claim 3
Dependent Claim
15 words
THE COMPOSITION OF CLAIM 1 IN WHICH THE POLY(HEXAFLUOROPROPYLENE OXIDE) OIL IS OF THE STRUCTURE
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |