US3445543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cured blend of diene block copolymer,olefin rubber and polystyrene
Assignee: Phillips Petroleum Co
•
Filing: 1965-12-13
•
Granted: 1969-05-20
•
Expires: 1985-12-13
Abstract
No abstract record available.
Inventors
- 👤 Jerry T Gruver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:51
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08L53/00; C08L53/02; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2844562A
Cited
US3129199A
Cited
US3230186A
Cited
US3239478A
Cited
US3251905A
Cited
US3231635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |