Patent US3210305A successfully refreshed from Google Patents.
US3210305A
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Wax-olefin copolymer compositions
Assignee: Shell USA Inc
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Filing: 1961-06-05
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Granted: 1965-10-05
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Expires: 1981-06-05
Abstract
No abstract record available.
Inventors
- 👤 Cyril B Coenen
- 👤 Harry F Richards
- 👤 Robert J Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:15
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/18; C; C08; C08L; C08L91/00; C08L91/06; C08L91/08; C09; C09J; C09J123/00; C09J123/02; C09J123/16; C10; C10G; C10G73/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF 40-95% BY WEIGHT OF A PETROLEUM WAX AND 5-60% BY WEIGHT OF A COPOLYMER OF ETHYLENE AND PROPYLENE, SAID COPOLYMER COMPRISING 80-95 MOL PERCENT OF ETHYLENE UNITS AND HAVING AN INTRINSIC VISCOSITY OF 2-5.
Claim 2
Dependent Claim
41 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF 40-95% BY WEIGHT OF A PETROLEUM WAX AND 5-60% BY WEIGHT OF A COPOLYMER OF ETHYLENE AND PROPYLENE, SAID COPOLYMER COMPRISING 80-95 MOL PERCENT OF ETHYLENE UNITS AND HAVING AN INTRINSIC VISCOSITY OF 2-5.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |