US3437608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gel-rise retardation in polyurethane foams
Assignee: Honeywell International Inc
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Filing: 1965-06-01
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Granted: 1969-04-08
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Expires: 1985-06-01
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Pohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:29
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/2805; C08G18/285; C08G18/2875; C08G18/08; C08G18/089; C08G18/2865; C08G18/65; C08G18/66; C08G18/6603; C08G18/6614; C08G18/6622; C08G18/70; C08G18/72; C08G18/80; C08G18/8061; C08G18/807; C08G18/808
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) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |