US3408320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent ethylene-propylene-diene terpolymer rubber vulcanizate
Assignee: Uniroyal Chemical Co Inc
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Filing: 1965-04-21
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Granted: 1968-10-29
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Expires: 1985-04-21
Abstract
No abstract record available.
Inventors
- 👤 William F Brucksch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:38
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08K3/00; C08K3/34; C08K3/36; C08K5/14; C08K5/16; C08K5/17; C08L; C08L23/00; C08L23/02; C08L23/16; C08L29/00; C08L2312/00; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/22
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) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |