US3492371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil and ozone resistant elastomer blends comprising edpm rubber
Assignee: DSM Copolymer Inc
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Filing: 1966-08-30
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Granted: 1970-01-27
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Expires: 1986-08-30
Abstract
No abstract record available.
Inventors
- 👤 Robert E Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:35
CPC Classifications
C; C08; C08L; C08L21/00; B; B60; B60C; B60C1/00; B60C1/0016; B60C1/0025; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/06; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/04; C08K5/09; C08K5/36; C08K5/43; C08K5/44; C08L23/00; C08L23/02; C08L23/16; C08L7/00; C08L9/00; C08L9/06; C08L91/00; C08L2312/00; C08L2666/00; C08L2666/02; C08L2666/04
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) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |