US3382298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stress-crack resistant polyethylene containing a polyvinyl acetal
Assignee: UNION CARBIDE CANADA Ltd
•
Filing: 1964-12-17
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Granted: 1968-05-07
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Expires: 1984-12-17
Abstract
No abstract record available.
Inventors
- 👤 Hans R Larsen
- 👤 Robert S Zalkowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:00
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L29/00; C08L29/02; C08L29/06; C08L29/14; C08L31/00; C08L31/02; C08L31/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2448666A
Cited
US3156745A
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US3090769A
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US3114728A
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US3182101A
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US3248359A
Cited
US3222455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |