US2968649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastomeric terpolymers
Assignee: EIDP Inc
•
Filing: 1958-12-04
•
Granted: 1961-01-17
•
Expires: 1978-12-04
Abstract
No abstract record available.
Inventors
- 👤 John R Pailthorp
- 👤 Schroeder Herman Elbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:42
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/18; C08F214/28; C08F214/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2751376A
Cited
US2888446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |