US3451962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for improved sulfur-vulcanization of mixtures of elastomers containing ethylene propylene terpolymers
Assignee: Englebert AG
•
Filing: 1966-04-28
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Granted: 1969-06-24
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Expires: 1986-04-28
Abstract
No abstract record available.
Inventors
- 👤 Hans W Auler
- 👤 Gerhard Proske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:07
CPC Classifications
C; C08; C08L; C08L21/00; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/06; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/0008; C08K5/0025; C08K5/04; C08K5/09; C08L23/00; C08L23/02; C08L23/16; C08L53/00; C08L53/02; C08L7/00; C08L9/00; C08L91/00; C08L2205/00; C08L2205/03; C08L2205/035; C08L2312/00; C08L2666/00; C08L2666/02; C08L2666/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3343582A
Cited
US3356764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |