US3464935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rigid,non - elastomeric,non - cellular,fiber reinforced polyether-urethane compositions
Assignee: Honeywell International Inc
•
Filing: 1966-04-05
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Granted: 1969-09-02
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Expires: 1986-04-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Sepkoski
- 👤 Robert F Trepa
- 👤 Edward R Degginger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:09
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/4804; C08L; C08L75/00; C08L75/04; C08L75/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2751363A
Cited
GB935424A
Cited
GB894924A
Cited
GB912555A
Cited
US3310533A
Cited
US3245827A
Cited
US3309261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |