Patent US3202728A successfully refreshed from Google Patents.
US3202728A
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Glue comprising hydroxyl containing polyester, polyisocyanate and resorcinol
Assignee: Office National d'Études et de Recherches Aérospatiales
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Filing: 1960-04-21
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Granted: 1965-08-24
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Expires: 1980-04-21
Abstract
No abstract record available.
Inventors
- 👤 Kohn Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:16
CPC Classifications
C; C09; C09J; C09J175/00; C09J175/04; C09J175/06; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/65; C08G18/66; C08G18/6633; C08G18/6637; C08G18/664; C08L; C08L2666/00; C08L2666/28; C08L2666/34; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31605
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A SUBSTANTIALLY WATER-FREE GLUE COMPRISING A MIXTURE OF POLYISOCYANATE, RESORCINOL, AND A POLYESTER HAVING FREE HYDROXYL GROUPS, SAID FLUE PRODUCING A POLYURETHANE WHEN CURED.
Claim 2
Dependent Claim
24 words
A SUBSTANTIALLY WATER-FREE GLUE COMPRISING A MIXTURE OF POLYISOCYANATE, RESORCINOL, AND A POLYESTER HAVING FREE HYDROXYL GROUPS, SAID FLUE PRODUCING A POLYURETHANE WHEN CURED.
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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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |