US2602783A
Expired / Lapsed
US
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Cellular foamed alkyd-diisocyanate resins
Assignee: Lockheed Martin Corp
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Filing: 1949-01-14
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Granted: 1952-07-08
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Expires: 1969-01-14
Abstract
No abstract record available.
Inventors
- 👤 Simon Eli
- 👤 Frank W Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:23
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0014; C08J9/0023; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4263; C08G18/4288; C08G18/70; C08G18/72; C08G18/80; C08G18/8003; C08K; C08K5/00; C08K5/04; C08K5/09; C08G2101/00; C08J2375/00; C08J2375/04; Y; Y10; Y10S; Y10S521/00; Y10S521/905
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
51 words
A FOAMED CELLULAR PLASTIC MATERIAL COMPRISING THE REACTION PRODUCT OF AN ALKYD RESIN HAVING A WATER CONTENT OF FROM 0.1% TO 3% BY WEIGHT, AN ACID NUMBER OF FROM 5 TO 80 AND WHEREIN THE HYDROXYL AND CARBOXYL GROUPS OF THE ALKYD RESIN REACTANTS ARE IN THE RATIO RANGE OF FROM
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) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |