US3201363A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion aids for polyethylene
Assignee: Hercules Powder Co
•
Filing: 1962-09-20
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Granted: 1965-08-17
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Expires: 1982-09-20
Abstract
No abstract record available.
Inventors
- 👤 Harold M Spurlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:10
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1535; C08K5/1539
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A COMPOSITION CONSISTING ESSENTIALLY OF A BLEND OF HIGH DENSITY TRANSITION AND METAL-CATALYZED POLYETHYLENE AND 0.01 TO 1.0% BY WEIGHT OF AN INNER ANHYDRIDE OF A POLYCARBOXYLIC ORGANIC ACID.
Claim 2
Dependent Claim
29 words
A COMPOSITION CONSISTING ESSENTIALLY OF A BLEND OF HIGH DENSITY TRANSITION AND METAL-CATALYZED POLYETHYLENE AND 0.01 TO 1.0% BY WEIGHT OF AN INNER ANHYDRIDE OF A POLYCARBOXYLIC ORGANIC ACID.
References Cited (Backward Citations)
US2973344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |