Patent US2843221A successfully refreshed from Google Patents.
US2843221A
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Force feed lubricating device for pistons
Assignee: NICKLES MACHINE Corp
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Filing: 1955-05-04
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Granted: 1958-07-15
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Expires: 1975-05-04
Abstract
No abstract record available.
Inventors
- 👤 John M Haring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:19
CPC Classifications
F; F04; F04B; F04B19/00; F04B19/003; F01; F01M; F01M1/00; F01M1/06; F01M1/08; F01P; F01P3/00; F01P3/06; F01P3/08; F04B39/00; F04B39/0005; F16; F16N; F16N13/00; F16N13/02; F16N13/06; F16N13/18; F01M2001/083; F01M2001/086
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) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |