US3798162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating compositions containing metal phosphonates
Assignee: Mobil Oil AS
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Filing: 1972-08-14
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Granted: 1974-03-19
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Expires: 1992-08-14
Abstract
Abstract THE EXTREME PRESSURE PROPERTIES OF ORGANIC FLUIDS ARE IMPROVED BY ADDING THERETO A SMALL AMOUNT OF A GOLD HYDROCARBYL HYDROCARBYLPHOSPHONATE COMPLEXED WITH A BASIC NITROGEN COMPOUND OR ANOTHER METAL HYDROCARBYL HYDROCARBYLPHOSPHONATE WHICH MAY OR MAY NOT BE SO COMPLEXED.
Inventors
- 👤 J Dickert
- 👤 C Rowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:57
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C10; C10M; C10M1/00; C10M1/08; C10M2223/00; C10M2223/06; C10M2223/065; C10M2227/00; C10M2227/09; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |