US2921048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic plastics containing n, n'-dioleoyl polyethylene polyamines or related compounds
Assignee: Eastman Kodak Co
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Filing: 1957-09-20
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Granted: 1960-01-12
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Expires: 1977-09-20
Abstract
No abstract record available.
Inventors
- 👤 Bell Alan
- 👤 Clarence E Tholstrup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:20
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/20; Y; Y10; Y10S; Y10S260/00; Y10S260/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
AN ARTICLE OF MANAFACTURE SHAPED FROM AN ORGANIC PLASTIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPROPYLENE NORMALLY SUBJECT TO OXIDATIVE DEGRADATION CHARACTERIZED BY AT LEAST ONE OF THE FOLLOWING TWO ADDITIONAL PROPERTIES: (1) BEING SUSPECTIBLE TO ACQUIRING A STATIC SURFACE CHARGE AND (2) HAVING A TENDENCY TOWARD COHESION BETWEEN FLAT SURFACES IN MUTUAL CONTACT, WHICH ARTICLE IS COMPOSED OF SAID ORGANIC PLASTIC MATERIAL CONTAINING FROM ABOUT 0.0001% TO ABOUT 5% BY WEIGHT OF AN AMELIORATING AGENT HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
83 words
AN ARTICLE OF MANAFACTURE SHAPED FROM AN ORGANIC PLASTIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPROPYLENE NORMALLY SUBJECT TO OXIDATIVE DEGRADATION CHARACTERIZED BY AT LEAST ONE OF THE FOLLOWING TWO ADDITIONAL PROPERTIES: (1) BEING SUSPECTIBLE TO ACQUIRING A STATIC SURFACE CHARGE AND (2) HAVING A TENDENCY TOWARD COHESION BETWEEN FLAT SURFACES IN MUTUAL CONTACT, WHICH ARTICLE IS COMPOSED OF SAID ORGANIC PLASTIC MATERIAL CONTAINING FROM ABOUT 0.0001% TO ABOUT 5% BY WEIGHT OF AN AMELIORATING AGENT HAVING THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US2765293A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |