Patent US3346547A successfully refreshed from Google Patents.
US3346547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion of polyolefins
Assignee: Hercules LLC
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Filing: 1964-10-12
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Granted: 1967-10-10
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Expires: 1984-10-12
Abstract
No abstract record available.
Inventors
- 👤 Cohen David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:00
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5317; C08K5/5333; C08K5/5353
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A COMPOSITION COMPRISISNG A BLEND OF HIGH DENSITY POLYETHYLENE HAVING INCORPORATED THEREIN ABOUT 0.01 TO 0.10% BY WEIGHT BASED ON THE WEIGHT OF THE POLYETHYLENE OF AN ORGANIC ESTER OF A PHOSPHONIC ACID HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
37 words
A COMPOSITION COMPRISISNG A BLEND OF HIGH DENSITY POLYETHYLENE HAVING INCORPORATED THEREIN ABOUT 0.01 TO 0.10% BY WEIGHT BASED ON THE WEIGHT OF THE POLYETHYLENE OF AN ORGANIC ESTER OF A PHOSPHONIC ACID HAVING THE STRUCTURAL FORMULA
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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |