US2678248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump piston
Assignee: Peters and Russell Inc
•
Filing: 1948-12-03
•
Granted: 1954-05-11
•
Expires: 1968-12-03
Abstract
No abstract record available.
Inventors
- 👤 George E Peters
- 👤 Linus E Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:01
CPC Classifications
F; F16; F16J; F16J1/00; F16J1/005; F16J1/006; F16J1/008; F04; F04B; F04B39/00; F04B39/0005; F04B39/0016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US138633A
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US1379492A
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US1376863A
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US1606511A
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US1769984A
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US1700091A
Cited
US2142712A
Cited
US2186664A
Cited
US2293564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |