Patent US2946286A successfully refreshed from Google Patents.
US2946286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valveless two way pump
Assignee: General Electric Co
•
Filing: 1958-11-21
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Granted: 1960-07-26
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Expires: 1978-11-21
Abstract
No abstract record available.
Inventors
- 👤 George T Sholtes
- 👤 Charles T Maney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:44
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/44; F04D29/46; F04D29/50; F04D29/506; A; A47; A47L; A47L15/00; A47L15/42; A47L15/4214; A47L15/4225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1113729A
Cited
US1049066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |