US3262894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame retardant urethane foam polymer
Assignee: Air Products and Chemicals Inc
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Filing: 1962-09-13
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Granted: 1966-07-26
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Expires: 1982-09-13
Abstract
No abstract record available.
Inventors
- 👤 Harold A Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:03
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0095; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08J2375/00
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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |