Patent US2560773A successfully refreshed from Google Patents.
US2560773A
Expired / Lapsed
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Synthetic wax of the carnauba type
Assignee: Lovell Chemical Co
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Filing: 1946-11-14
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Granted: 1951-07-17
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Expires: 1966-11-14
Abstract
No abstract record available.
Inventors
- 👤 Stanley P Lovell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:43
CPC Classifications
C; C08; C08L; C08L91/00; C08L91/06; C08L91/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A YELLOWISH BROWN WAX HAVING A MELTING POINT OF APPROXIMATELY 216* F., SPECIFIC GRAVITY OF 0.9307 AND WHICH IS SOLUBLE IN HOT HYDROCARBON SOLVENTS BUT NOT SOLUBLE IN COLD CONDITION, AND WHICH IS MADE BY HEATING MOLTEN POLYETHYLENE AND A MICROCRYSTALLINE PETROLEUM WAX PREPARED BY OXIDIZING PETROLEUM TANKAGE TOGETHER AT A TEMPERATURE OF APPROXIMATELY 400* F. AND IN THE PROPORTIONS APPROXIMATING 35-7% POLYETHYLENE TO 65-93% WAX.
Claim 2
Dependent Claim
66 words
A YELLOWISH BROWN WAX HAVING A MELTING POINT OF APPROXIMATELY 216* F., SPECIFIC GRAVITY OF 0.9307 AND WHICH IS SOLUBLE IN HOT HYDROCARBON SOLVENTS BUT NOT SOLUBLE IN COLD CONDITION, AND WHICH IS MADE BY HEATING MOLTEN POLYETHYLENE AND A MICROCRYSTALLINE PETROLEUM WAX PREPARED BY OXIDIZING PETROLEUM TANKAGE TOGETHER AT A TEMPERATURE OF APPROXIMATELY 400* F. AND IN THE PROPORTIONS APPROXIMATING 35-7% POLYETHYLENE TO 65-93% WAX.
References Cited (Backward Citations)
US2471102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |