US3450649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of polyisocyanate reinforced elastomeric foam
Assignee: EIDP Inc
•
Filing: 1966-08-12
•
Granted: 1969-06-17
•
Expires: 1986-08-12
Abstract
No abstract record available.
Inventors
- 👤 Mortimer Alexander Youker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:29
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/69; C08G18/696; C08G2110/00; C08G2110/0008; C08G2110/0041; C08G2110/0058; C08G2110/0083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2993013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |