Patent US3090751A successfully refreshed from Google Patents.
US3090751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating and sealing compositions
Assignee: Rockwell Manufacturing Co
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Filing: 1956-12-28
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Granted: 1963-05-21
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Expires: 1976-12-28
Abstract
No abstract record available.
Inventors
- 👤 George F Scherer
- 👤 Otto T Bierwagen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:22
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/02; C10M2201/10; C10M2201/102; C10M2201/14; C10M2203/00; C10M2203/06; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2209/00; C10M2209/12; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/044; C10M2215/06; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/06; C10M2219/062; C10N; C10N2010/00; C10N2010/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A LUBRICATING AND SEALING COMPOSITION CONSISTING ESSENTIALLY OF 45 TO 80 PARTS BY WEIGHT OF AN EXTREMELY LOW POUR POINT LUBRICATING MINERAL OIL; 6 TO 17 PARTS BY WEIGHT OF A POLYBUTENE HAVING AN AVERAGE MOLECULAR WEIGHT FROM ABOUT 400 TO ABOUT 12,000; AND A BENTONITEAMINE REACTION PRODUCT IN SUFFICIENT QUANTITY TO RENDER SAID COMPOSITION OF SUFFICIENT VISCOSITY TO PERFORM AN ADEQUATE SEALING AND LUBRICATING FUNCTION FOR USE IN LUBRICANT-SEALED VALVES OVER A TEMPERATURE RANGE OF FROM -50* F. TO +130* F.
Claim 2
Dependent Claim
82 words
A LUBRICATING AND SEALING COMPOSITION CONSISTING ESSENTIALLY OF 45 TO 80 PARTS BY WEIGHT OF AN EXTREMELY LOW POUR POINT LUBRICATING MINERAL OIL; 6 TO 17 PARTS BY WEIGHT OF A POLYBUTENE HAVING AN AVERAGE MOLECULAR WEIGHT FROM ABOUT 400 TO ABOUT 12,000; AND A BENTONITEAMINE REACTION PRODUCT IN SUFFICIENT QUANTITY TO RENDER SAID COMPOSITION OF SUFFICIENT VISCOSITY TO PERFORM AN ADEQUATE SEALING AND LUBRICATING FUNCTION FOR USE IN LUBRICANT-SEALED VALVES OVER A TEMPERATURE RANGE OF FROM -50* F. TO +130* F.
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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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |