Patent US2960474A successfully refreshed from Google Patents.
US2960474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicate-silicone hydraulic fluid composition
Assignee: California Research LLC
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Filing: 1957-05-20
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Granted: 1960-11-15
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Expires: 1977-05-20
Abstract
No abstract record available.
Inventors
- 👤 Neal W Furby
- 👤 Charles D Newnan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:16
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A COMPOSITION FOR USE AS A POWER TRANSMISSION FLUID WHICH CONSITS ESSENTIALLY OF A TOTAL OF FROM THE GROUP 97% BY WEIGHT OF ALKYL SILICATE SELECTED FROM THE GROUP CONSITING OF HEXAALOXY DISILOAXANES AND MIXTURES OF POLYALKOXY POLSILOXANES AND ALKYL SILICATES CONTAINING AT LEAST 60% BY WEIGHT OF HEXAALKOXY DISLOXANE, SAID ALKYL SILICATES AND POLYALKYL POLYSILOXANES HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
60 words
A COMPOSITION FOR USE AS A POWER TRANSMISSION FLUID WHICH CONSITS ESSENTIALLY OF A TOTAL OF FROM THE GROUP 97% BY WEIGHT OF ALKYL SILICATE SELECTED FROM THE GROUP CONSITING OF HEXAALOXY DISILOAXANES AND MIXTURES OF POLYALKOXY POLSILOXANES AND ALKYL SILICATES CONTAINING AT LEAST 60% BY WEIGHT OF HEXAALKOXY DISLOXANE, SAID ALKYL SILICATES AND POLYALKYL POLYSILOXANES HAVING THE GENERAL FORMULA
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) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |