Patent US2968348A successfully refreshed from Google Patents.
US2968348A
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Multi-pump system having speed and pressure rise responsive by-pass means
Assignee: RTX Corp
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Filing: 1957-10-03
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Granted: 1961-01-17
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Expires: 1977-10-03
Abstract
No abstract record available.
Inventors
- 👤 William E Fortmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:42
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/22; F02C7/236; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2617
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA508663A
Cited
US2700872A
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US2723529A
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US2545856A
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US2782769A
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US2835323A
Cited
US2812715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |