US3461104A
Expired / Lapsed
US
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Fuel-resistant polyurethanes based on polyesters of polyhalopolyhy-dromethano-naphthalene carboxylic anhydride
Assignee: Goodrich Corp
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Filing: 1967-06-23
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Granted: 1969-08-12
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Expires: 1987-06-23
Abstract
No abstract record available.
Inventors
- 👤 Floyd D Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:18
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/68; C08G18/683; C08G18/686; C08G18/40; C08G18/4009; C08G18/65; C08G18/6505; C08G18/6511; C08G2390/00; Y; Y10; Y10S; Y10S220/00; Y10S220/905; Y10T; Y10T137/00; Y10T137/6851
Claims Analysis
Total Claims: 0
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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) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |