Patent US3278428A successfully refreshed from Google Patents.
US3278428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease composition
Assignee: Gulf Research and Development Co
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Filing: 1964-12-01
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Granted: 1966-10-11
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Expires: 1984-12-01
Abstract
No abstract record available.
Inventors
- 👤 John F Hedenburg
- 👤 Chester S Tempalski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:29
CPC Classifications
C; C10; C10M; C10M7/00; C10M2201/00; C10M2201/10; C10M2201/102; C10M2201/103; C10M2201/105; C10M2207/00; C10M2207/04; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/06; C10M2229/00; C10M2229/04; C10M2229/043; C10M2229/044; C10N; C10N2020/00; C10N2020/01; C10N2050/00; C10N2050/08; C10N2050/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
48 words
A LUBRICATING COMPOSITION COMPRISING A DISPERSION IN A MAJOR AMOUNT OF A LIQUID POLYORGANOSILOXANE HAVING DIPHENYLMETHYLSILYL END GROUPS OF ABOUT 10 TO ABOUT 40 PERCENT BY WEIGHT OF THE SOLID RESIDUAL PYROLYSIS PRODUCT OF MERCURIC THIOCYANATE AND ABOUT 0.5 TO ABOUT 5 PERCENT BY WEIGHT OF FINELY-DIVIDED SILICA.
References Cited (Backward Citations)
US3089875A
Cited
US3108957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |