US3318252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pump
Assignee: Individual
•
Filing: 1964-06-02
•
Granted: 1967-05-09
•
Expires: 1984-06-02
Abstract
No abstract record available.
Inventors
- 👤 Claude C Nichols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:49
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/60; F04D29/605
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN COMBINATION WITH A FLUID PUMP AND A MOTOR MOUNTED THEREON FOR IMPARTING ROTATION TO ROTATABLE ELEMENTS OF SAID PUMP, SAID PUMP HAVING ROTATABLE SHAFT WITH PROPELLER ATTACHED THERETO DISPOSED WITHIN A VERTICAL INTAKE PIPE INCLUDING A DISCHARGE PIPE ATTACHED TO SAID INTAKE PIPE AND IN COMMUNICATION THEREWITH, A PLURALITY OF STATIONARY FINS ATTACHED TO THE EXTERIOR SURFACE OF THE OUTER VERTICAL WALL OF SAID INTAKE PIPE AND EXTENDING DOWNWARDLY TO THE LOWER EDGE THEREOF AND EXTENDING OUTWARDLY THEREFROM.
Claim 2
Dependent Claim
79 words
IN COMBINATION WITH A FLUID PUMP AND A MOTOR MOUNTED THEREON FOR IMPARTING ROTATION TO ROTATABLE ELEMENTS OF SAID PUMP, SAID PUMP HAVING ROTATABLE SHAFT WITH PROPELLER ATTACHED THERETO DISPOSED WITHIN A VERTICAL INTAKE PIPE INCLUDING A DISCHARGE PIPE ATTACHED TO SAID INTAKE PIPE AND IN COMMUNICATION THEREWITH, A PLURALITY OF STATIONARY FINS ATTACHED TO THE EXTERIOR SURFACE OF THE OUTER VERTICAL WALL OF SAID INTAKE PIPE AND EXTENDING DOWNWARDLY TO THE LOWER EDGE THEREOF AND EXTENDING OUTWARDLY THEREFROM.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |