US2952335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of lubricating metal surfaces with a vaporous lubricant
Assignee: Shell USA Inc
•
Filing: 1958-02-18
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Granted: 1960-09-13
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Expires: 1978-02-18
Abstract
No abstract record available.
Inventors
- 👤 Robert A Coit
- 👤 Stanley S Sorem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:43
CPC Classifications
C; C10; C10M; C10M171/00; C10M171/005; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1025; F16C33/109
Claims Analysis
Total Claims: 0
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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) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |