US2474539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping apparatus
Assignee: Goulds Pumps Inc
•
Filing: 1944-02-25
•
Granted: 1949-06-28
•
Expires: 1964-02-25
Abstract
No abstract record available.
Inventors
- 👤 Mann John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:04
CPC Classifications
F; F04; F04D; F04D9/00; F04D9/04; F04D9/06; F04D29/00; F04D29/60; F04D29/605; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/3137
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1253687A
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US1887609A
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US1938956A
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US1941766A
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US2032291A
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US2184349A
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US2220209A
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US2257507A
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US2274987A
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US2319509A
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US2335109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |