US2728735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wax composition
Assignee: Shell Development Co
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Filing: 1951-12-29
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Granted: 1955-12-27
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Expires: 1971-12-29
Abstract
No abstract record available.
Inventors
- 👤 Alvin P Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:41
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/18; C; C08; C08L; C08L91/00; C08L91/06; C08L91/08; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/35; D21H17/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
AS A NEW COMPOSITION OF MATTER, A WAX COMPOSITION CONSISTING ESSENTIALLY OF BETWEEN ABOUT 1% AND ABOUT 20% BY WEIGHT OF A PARAFFIN WAX OF CRYSTALLINE STRUCTURE HAVING A MELTING POINT BETWEEN ABOUT 165*F. AND ABOUT 195*F. BETWEEN ABOUT 0.05% AND ABOUT 20% BY WEIGHT OF A POLYMERIZED OLEFIN HAVING A MOLECULAR WEIGHT GREATER THAN ABOUT 1,000 ANJD AT LEAST 60% BY WEIGHT OF A PARAFFIN HYDROCARBON WAX OF A CRYSTALLINE STRUCTURE HAVING A MELTING POINT BETWEEN ABOUT 110*F. AND ABOUT 150*F.
Claim 2
Dependent Claim
82 words
AS A NEW COMPOSITION OF MATTER, A WAX COMPOSITION CONSISTING ESSENTIALLY OF BETWEEN ABOUT 1% AND ABOUT 20% BY WEIGHT OF A PARAFFIN WAX OF CRYSTALLINE STRUCTURE HAVING A MELTING POINT BETWEEN ABOUT 165*F. AND ABOUT 195*F. BETWEEN ABOUT 0.05% AND ABOUT 20% BY WEIGHT OF A POLYMERIZED OLEFIN HAVING A MOLECULAR WEIGHT GREATER THAN ABOUT 1,000 ANJD AT LEAST 60% BY WEIGHT OF A PARAFFIN HYDROCARBON WAX OF A CRYSTALLINE STRUCTURE HAVING A MELTING POINT BETWEEN ABOUT 110*F. AND ABOUT 150*F.
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) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |