US2746393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal drainage pump
Assignee: General Electric Co
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Filing: 1952-05-10
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Granted: 1956-05-22
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Expires: 1972-05-10
Abstract
No abstract record available.
Inventors
- 👤 Henry C Sway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:04
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/44; F04D29/445; A; A47; A47L; A47L15/00; A47L15/02; A47L15/06; A47L15/42; A47L15/4214; A47L15/4225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |