Patent US2697986A successfully refreshed from Google Patents.
US2697986A
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US
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Axial flow glandless impeller pump
Assignee: Individual
•
Filing: 1952-04-05
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Granted: 1954-12-28
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Expires: 1972-04-05
Abstract
No abstract record available.
Inventors
- 👤 Jr James M Meagher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:20
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/0646; H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1534451A
Cited
AT104277B
Cited
GB250177A
Cited
FR634765A
Cited
FR656111A
Cited
US2283176A
Cited
US2277333A
Cited
US2285050A
Cited
US2485408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |