US3434430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-priming pump system with external actuating means
Assignee: Studebaker Worthington Inc
•
Filing: 1967-04-18
•
Granted: 1969-03-25
•
Expires: 1987-04-18
Abstract
No abstract record available.
Inventors
- 👤 Merril Berman
- 👤 John Slaughter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:19
CPC Classifications
F; F04; F04D; F04D9/00; F04D9/007; F04D9/008; Y; Y10; Y10S; Y10S415/00; Y10S415/901; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE401149C
Cited
US1866064A
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US2219635A
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FR995383A
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GB636848A
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US2902940A
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US3078806A
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US3211102A
Cited
US3228343A
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US3276384A
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US3370604A
Cited
US3381618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |