US3567597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a dry lubricant coating
Assignee: Bunker Ramo Corp
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Filing: 1969-06-11
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Granted: 1971-03-02
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Expires: 1989-06-11
Abstract
Abstract A METAL SUCH AS TIN, ALUMINUM OR MAGNESIUM IS ELECTROLYTICALLY ANODIZED AND SIMULTANEOUSLY THEREWITH THERE IS ELECTROPHORETICALLY DEPOSITED PARTICLES OF A SOLID LUBRICANT ON THE METAL. ALL TYPES OF SOLID LUBRICANT PARTICLES WHICH NORMALLY HAVE OR CAN BE MADE TO HAVE A NEGATIVE CHARGE MAY BE USED, INCLUDING MOLYBDENUM DISULPHIDE, ALUMINA-TUNGSTERN DISULPHIDE, POLYETHYLENE, AND FLUOROCARBON POLYMERS.
Inventors
- 👤 Ralph J Hovey
- 👤 Afsar A Khan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:29
CPC Classifications
C; C25; C25D; C25D13/00
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |