US2640812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease
Assignee: Swan Finch Oil Corp
•
Filing: 1951-03-08
•
Granted: 1953-06-02
•
Expires: 1971-03-08
Abstract
No abstract record available.
Inventors
- 👤 William C Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:22
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/14; C10M2203/00; C10M2203/10; C10M2203/108; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2215/00; C10M2215/12; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A LUBRICATING COMPOSITION OF A PETROLEUM LUBRICANT, A MONTMORILLONITE MODIFIED BY AN ORGANIC CATION, AND A LONG-CHAIN ORGANIC SALT GELATOR WHICH CONTAINS A STRAIGHT CHAIN OF AT LEAST 8 CARBON ATOMS AND WHOSE SALT-FORMING METAL IS SELECTED FROM THE GROUP CONSISTING OF LITHIUM, SODIUM, CALCIUM, BARIUM, AND STRONTIUM, SAID ORGANIC SALT HAVING THE CHARACTERISTIC OF IMPROVING THE LUBRICITY AND INHIBITING THE RUST-PRODUCING PROPERTIES OF THE MODIFIED MONTMORILLONITE, THE PROPORTIONS OF MODIFIED MONTMORILLONITE TO SAID ORGANIC SALT GELATOR RANGING FROM 19-78% OF SAID MODIFIED MONTMORILLONITE TO 81-22% OF SAID ORGANIC SALT GELATOR.
Claim 2
Dependent Claim
91 words
A LUBRICATING COMPOSITION OF A PETROLEUM LUBRICANT, A MONTMORILLONITE MODIFIED BY AN ORGANIC CATION, AND A LONG-CHAIN ORGANIC SALT GELATOR WHICH CONTAINS A STRAIGHT CHAIN OF AT LEAST 8 CARBON ATOMS AND WHOSE SALT-FORMING METAL IS SELECTED FROM THE GROUP CONSISTING OF LITHIUM, SODIUM, CALCIUM, BARIUM, AND STRONTIUM, SAID ORGANIC SALT HAVING THE CHARACTERISTIC OF IMPROVING THE LUBRICITY AND INHIBITING THE RUST-PRODUCING PROPERTIES OF THE MODIFIED MONTMORILLONITE, THE PROPORTIONS OF MODIFIED MONTMORILLONITE TO SAID ORGANIC SALT GELATOR RANGING FROM 19-78% OF SAID MODIFIED MONTMORILLONITE TO 81-22% OF SAID ORGANIC SALT GELATOR.
References Cited (Backward Citations)
US2531440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |