US3655822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic polymer alloy
Assignee: BP Corp North America Inc
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Filing: 1970-10-12
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Granted: 1972-04-11
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Expires: 1990-10-12
Abstract
Abstract AN ALLOY OF THERMPOLASTIC POLYMER IS PROVIDED BY A BLEND OF (A) A POLYLACTAM-POLYARYLENE POLYETHER BLOCK COPOLYMER AND (B) POLYLACTANS AND/OR POLYARYLENE POLYETHERS.
Inventors
- 👤 James E Mcgrath
- 👤 Markus Matzner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:07
CPC Classifications
C; C08; C08L; C08L71/00; C08L77/00; C08L77/06; C08L81/00; C08L81/06; C08L77/02; C08L87/00; C08L87/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |