US2526427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame and heat resistant sealing compounds
Assignee: Lockheed Martin Corp
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Filing: 1948-04-30
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Granted: 1950-10-17
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Expires: 1968-04-30
Abstract
No abstract record available.
Inventors
- 👤 Simon Eli
- 👤 Frank W Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:25
CPC Classifications
C; C09; C09J; C09J167/00; C09J167/08; C09D; C09D167/00; C09D167/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
111 words
A HEAT RESISTANT SEALING COMPOUND COMPRISING A POLYESTER RESIN HAVING AN ACID VALUE OF FROM 60 TO 200 AND AN IODINE VALUE OF FROM 0 TO 100, SAID RESIN BEING THE REACTION PRODUCT OF FROM 6 TO 12 MOLS ADIPIC ACID, FROM 3 TO 6 MOLS GLYCEROL, AND FROM 1 TO 2 1/2 MOLS CASTOR OIL, FROM 5 TO 25 PARTS BY WEIGHT OF TRIPHENYL PHOSPHATE FOR EACH 100 PARTS BY WEIGHT OF SAID RESIN, AND FROM 1 TO 35 PARTS BY WEIGHT OF AN OXIDE OF A METAL OF GROUP II OF THE PERIODIC TABLE THAT IS BIVALENT IN ALL OF ITS COMPOUNDS FOR EACH 100 PARTS OF SAID RESIN.
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) | 1953-10-16 | 1954-04-17 | 1954-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-16 | 1958-04-17 | 1958-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-16 | 1962-04-17 | 1962-10-17 | $7700.00 | Window Closed / Lapsed |