US2948524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump for molten metal
Assignee: Metal Pumping Services Inc
•
Filing: 1957-02-18
•
Granted: 1960-08-09
•
Expires: 1977-02-18
Abstract
No abstract record available.
Inventors
- 👤 Victor D Sweeney
- 👤 Walter U Kaji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:56
CPC Classifications
F; F04; F04D; F04D7/00; F04D7/02; F04D7/06; F04D7/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1196758A
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GB191330059A
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US1988875A
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US2173377A
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US2138814A
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US2300688A
Cited
US2368962A
Cited
DE804064C
Cited
CH261718A
Cited
US2528210A
Cited
US2626086A
Cited
US2768587A
Cited
US2762095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |