US2890682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-under-pressure-operated reciprocating mechanism
Assignee: Individual
•
Filing: 1952-06-17
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Granted: 1959-06-16
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Expires: 1972-06-17
Abstract
No abstract record available.
Inventors
- 👤 Bernard A Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:47
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/02; F03C1/03; B; B22; B22C; B22C15/00; B22C15/10; B22C15/14; B23; B23D; B23D51/00; B23D51/16; B23D51/18; B23D67/00; F01; F01L; F01L21/00; F01L21/04; F01L23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US996722A
Cited
US1001821A
Cited
US1347444A
Cited
US1441017A
Cited
US2246535A
Cited
FR883785A
Cited
US2555018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-15 | 1962-12-15 | 1963-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-15 | 1966-12-15 | 1967-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-15 | 1970-12-15 | 1971-06-16 | $7700.00 | Window Closed / Lapsed |