Patent US2287881A successfully refreshed from Google Patents.
US3361849A
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US
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Blends of isotactic propylene polymer and hydrogenated terpene polymer
Assignee: Hercules LLC
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Filing: 1964-08-04
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Granted: 1968-01-02
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Expires: 1984-08-04
Abstract
No abstract record available.
Inventors
- 👤 Thomas A Cramer
- 👤 John R Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:15
CPC Classifications
E; E02; E02F; E02F7/00; E02F7/06; E02F7/065; C; C08; C08F; C08F8/00; C08F8/04; C08L; C08L23/00; C08L23/02; C08L23/10; C08L57/00; C08L57/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2152533A
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US2319959A
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US2397205A
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US3144430A
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US3247142A
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US3278646A
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US3220966A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |