US2883939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pump
Assignee: Peters and Russell Inc
•
Filing: 1955-09-22
•
Granted: 1959-04-28
•
Expires: 1975-09-22
Abstract
No abstract record available.
Inventors
- 👤 Linus E Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:33
CPC Classifications
F; F04; F04B; F04B9/00; F04B9/14; B; B05; B05B; B05B11/00; B05B11/01; B05B11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US237193A
Cited
US2377916A
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US923201A
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US880560A
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US978538A
Cited
US1338739A
Cited
US1471085A
Cited
US1777052A
Cited
US2044594A
Cited
US2388661A
Cited
US2622539A
Cited
US2577417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |