US2945448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal centrifugal pump
Assignee: ITT Bell and Gossett Inc
•
Filing: 1957-02-15
•
Granted: 1960-07-19
•
Expires: 1977-02-15
Abstract
No abstract record available.
Inventors
- 👤 Stanley H Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:01
CPC Classifications
F; F04; F04D; F04D9/00; F04D9/004; F04D9/005; F04D9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR404632A
Cited
DE528210C
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DE569106C
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US1981025A
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US2110883A
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US2041586A
Cited
US2244397A
Cited
US2287397A
Cited
US2332875A
Cited
US2477079A
Cited
GB691362A
Cited
GB679246A
Cited
US2792787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |