Patent US2874803A successfully refreshed from Google Patents.
US2874803A
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US
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Lubrication means
Assignee: RTX Corp
•
Filing: 1955-07-26
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Granted: 1959-02-24
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Expires: 1975-07-26
Abstract
No abstract record available.
Inventors
- 👤 Harry W Gunberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:39
CPC Classifications
F; F16; F16N; F16N7/00; F16N7/36; F01; F01D; F01D25/00; F01D25/18; F16N2210/00; F16N2210/02; Y; Y02; Y02T; Y02T50/00; Y02T50/60
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) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |