Patent US2760877A successfully refreshed from Google Patents.
US2760877A
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Sealing composition and a process of making it
Assignee: Johns Manville Corp
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Filing: 1952-05-22
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Granted: 1956-08-28
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Expires: 1972-05-22
Abstract
No abstract record available.
Inventors
- 👤 Foster J Castner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:28
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/10; C09K3/1025; C09K3/1028; C09K2200/00; C09K2200/02; C09K2200/0243; C09K2200/0252; C09K2200/0278; C09K2200/0286; C09K2200/04; C09K2200/0441; C09K2200/0447
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A SEALING COMPOSITION HAVING A HIGH YEILD STRENGTH COMPRISING APPROXIMATELY 25 TO 75% BY WEIGHT OF AN INERT FILLER AND A PRODUCT FORMED BY HEATING TOGETHER CASTOR OIL AND AN EFFECTIVE AMOUNT WHICH IF FROM AT LEAST 0.2% BY WEIGHT OF SAID OIL UP TO THE MAXIMUM CAPABLE OF BEING DISSOLVED IN SAID OIL OF A HIGH YIELD STRENGTH IMPARTING STIFFENER SELECTED FROM ONE OF A GROUP CONSISTING OF SATURATED AND UNSATUREATED DICARBOXYLIC ACIDS AND ANHYDRIDES THEREOF HAVING UP TO 12 CARBON ATOMS AND ONLY CARBON, HYDROGEN, AND OXYGEN.
Claim 2
Dependent Claim
89 words
A SEALING COMPOSITION HAVING A HIGH YEILD STRENGTH COMPRISING APPROXIMATELY 25 TO 75% BY WEIGHT OF AN INERT FILLER AND A PRODUCT FORMED BY HEATING TOGETHER CASTOR OIL AND AN EFFECTIVE AMOUNT WHICH IF FROM AT LEAST 0.2% BY WEIGHT OF SAID OIL UP TO THE MAXIMUM CAPABLE OF BEING DISSOLVED IN SAID OIL OF A HIGH YIELD STRENGTH IMPARTING STIFFENER SELECTED FROM ONE OF A GROUP CONSISTING OF SATURATED AND UNSATUREATED DICARBOXYLIC ACIDS AND ANHYDRIDES THEREOF HAVING UP TO 12 CARBON ATOMS AND ONLY CARBON, HYDROGEN, AND OXYGEN.
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) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |