US2582733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal protecting compositions
Assignee: Standard Oil Development Co
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Filing: 1949-11-05
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Granted: 1952-01-15
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Expires: 1969-11-05
Abstract
No abstract record available.
Inventors
- 👤 John C Zimmer
- 👤 Gordon W Duncan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:25
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/08; C10M135/10; C10M2201/00; C10M2201/02; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/04; C10M2205/18; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/023; C10M2207/027; C10M2207/04; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/135; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A NON-CORROSIVE METAL PROTECTIVE COMPOSITION CONSISTING ESSENTIALLY OF FROM 90% TO 99% BY WEIGHT OF A MINERAL BASE LUBRICATING OIL AND FROM 1% TO 10% BY WEIGHT OF METHYL AMINE PETROLEUM SULFONATE WHEREIN THE MOLECULAR WEIGHT OF THE UNCOMBINED PETROLEUM SULFONIC ACID IS BETWEEN 350 AND 500.
Claim 2
Dependent Claim
47 words
A NON-CORROSIVE METAL PROTECTIVE COMPOSITION CONSISTING ESSENTIALLY OF FROM 90% TO 99% BY WEIGHT OF A MINERAL BASE LUBRICATING OIL AND FROM 1% TO 10% BY WEIGHT OF METHYL AMINE PETROLEUM SULFONATE WHEREIN THE MOLECULAR WEIGHT OF THE UNCOMBINED PETROLEUM SULFONIC ACID IS BETWEEN 350 AND 500.
References Cited (Backward Citations)
US2398193A
Cited
US2412634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |