US2531440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricants
Assignee: NL Industries Inc
•
Filing: 1947-03-29
•
Granted: 1950-11-28
•
Expires: 1967-03-29
Abstract
No abstract record available.
Inventors
- 👤 John W Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:02
CPC Classifications
C; C10; C10M; C10M5/00; C01; C01B; C01B33/00; C01B33/20; C01B33/36; C01B33/38; C01B33/44; C10M2201/00; C10M2201/14; C10M2207/00; C10M2207/04; C10M2207/044; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/044; C10M2215/06; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/086; C10M2223/00; C10M2223/06; C10M2223/061; C10M2227/00; C10M2227/08; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/10; C10N2010/12; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A BODIED LUBRICANT, COMPRISING ESSENTIALLY, AN ORGANIC LUBRICATING LIQUID HAVING COLLOIDALLY DISPERSED THEREIN A CLAY ORIGINALLY EXHIBITING A BASE-EXCHANGE CAPACITY OF AT LEAST 25, IN WHICH THE EXCHANGEABLE INORGANIC CATION HAS BEEN EXCHANGED FOR AN ONIUM BASE OF A TYPE CAPABLE OF AND TO AN EXTENT SUFFICIENT TO FORM AN ONIUM-CLAY SWELLING TO AT LEAST EIGHT-FOLD IN NITROBENZENE.
Claim 2
Dependent Claim
58 words
A BODIED LUBRICANT, COMPRISING ESSENTIALLY, AN ORGANIC LUBRICATING LIQUID HAVING COLLOIDALLY DISPERSED THEREIN A CLAY ORIGINALLY EXHIBITING A BASE-EXCHANGE CAPACITY OF AT LEAST 25, IN WHICH THE EXCHANGEABLE INORGANIC CATION HAS BEEN EXCHANGED FOR AN ONIUM BASE OF A TYPE CAPABLE OF AND TO AN EXTENT SUFFICIENT TO FORM AN ONIUM-CLAY SWELLING TO AT LEAST EIGHT-FOLD IN NITROBENZENE.
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) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |