Patent US2615397A successfully refreshed from Google Patents.
US2615397A
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Pumping apparatus
Assignee: F E Meyers & Bro Co
•
Filing: 1949-04-07
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Granted: 1952-10-28
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Expires: 1969-04-07
Abstract
No abstract record available.
Inventors
- 👤 William J Conery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:53
CPC Classifications
F; F04; F04D; F04D9/00; F04D9/04; F04D9/06; Y; Y10; Y10S; Y10S415/00; Y10S415/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2077213A
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US2174960A
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US2225789A
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US2274987A
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US2335109A
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US2381640A
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US2549218A
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US2475118A
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US2403556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |