Patent US2581407A successfully refreshed from Google Patents.
US2581407A
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Joint lubricant and sealing composition
Assignee: Individual
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Filing: 1945-12-11
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Granted: 1952-01-08
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Expires: 1965-12-11
Abstract
No abstract record available.
Inventors
- 👤 George M Hain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:48
CPC Classifications
C; C10; C10M; C10M7/00; C09; C09J; C09J123/00; C09J123/02; C09J123/18; C09J123/20; C09K; C09K3/00; C09K3/12; C08; C08L; C08L2666/00; C08L2666/28; C08L2666/40; C08L2666/54; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/06; C10M2201/062; C10M2201/10; C10M2201/102; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2219/00; C10M2219/04; C10M2219/044; C10M2223/00; C10M2223/10; C10N; C10N2010/00; C10N2010/04; C10N2050/00; C10N2050/08; C10N2050/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
61 words
A SEALING COMPOSITION COMPRISING FROM ABOUT 45 TO 90% BY WEIGHT OF A HIGH VISCOSITY, LOW VOLALITITY POLYBUTENE OF MOLECULAR WEIGHT WITHIN THE RANGE OF ABOUT 3000 TO 10,000, FROM ABOUT 10 TO 50% BY WEIGHT OF A FINELY DIVIDED SOLID LUBRICANT DISPERSED THEREIN, AND FROM ABOUT 0.5 TO 5% BY WEIGHT OF A COMPATIBLE DISPERSING AGENT FOR THE SOLID LUBRICANT.
References Cited (Backward Citations)
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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) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |