Patent US3514402A successfully refreshed from Google Patents.
US3514402A
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Synthetic lubricants containing trimethylol - alkane - di - ortho-silicic acid esters
Assignee: Ruhrchemie AG
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Filing: 1967-11-28
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Granted: 1970-05-26
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Expires: 1987-11-28
Abstract
No abstract record available.
Inventors
- 👤 Herbert Gothel
- 👤 Hans Feichtinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:22
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/04; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/04; C10M2207/28; C10M2207/282; C10M2207/283; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/10; C10M2219/00; C10M2219/10; C10M2219/104; C10M2219/108; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2227/00; C10M2227/02; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3218271A
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US3287384A
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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) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |