Patent US2802751A successfully refreshed from Google Patents.
US2802751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hardening oxidized wax
Assignee: Sunoco Inc
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Filing: 1954-11-30
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Granted: 1957-08-13
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Expires: 1974-11-30
Abstract
No abstract record available.
Inventors
- 👤 Stanford J Hetzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:01
CPC Classifications
C; C10; C10G; C10G73/00; C10G73/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
THE METHOD OF PREPARING A RELATIVELY HARD PARTIALLY OXIDIZED PETROLEUM WAX COMPOSITION WHICH COMPRISES INCORPORATING IN A PARTIALLY OXIDIZED PETROLEUM WAX HAVING SAPONIFICATION NUMBER ABOVE ABOUT 30 MG. OF KOH PER GRAM LIMED NAPHTHENIC ACID IN AMOUNT SUFFICIENT TO SUBSTANTIALLY INCREASE THE HARDNESS.
Claim 2
Independent Claim
43 words
THE METHOD OF PREPARING A RELATIVELY HARD PARTIALLY OXIDIZED PETROLEUM WAX COMPOSITION WHICH COMPRISES INCORPORATING IN A PARTIALLY OXIDIZED PETROLEUM WAX HAVING SAPONIFICATION NUMBER ABOVE ABOUT 30 MG. OF KOH PER GRAM LIMED NAPHTHENIC ACID IN AMOUNT SUFFICIENT TO SUBSTANTIALLY INCREASE THE HARDNESS.
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) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |