US2946290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid distribution device
Assignee: CHESTER J DUCKI
•
Filing: 1957-05-13
•
Granted: 1960-07-26
•
Expires: 1977-05-13
Abstract
No abstract record available.
Inventors
- 👤 Charles E Sylvander
- 👤 Chester J Ducki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:29
CPC Classifications
F; F02; F02M; F02M69/00; F02M69/46; F02M69/50; F02M41/00; F02M41/02; F02M41/06; F02M41/08; F02M41/14; F23; F23K; F23K5/00; F23K5/02; F23K5/04; F02M2700/00; F02M2700/05; F02M2700/055; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86115; Y10T137/86123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US82833A
Cited
US1889517A
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US1977780A
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US1930480A
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US2129928A
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US2209856A
Cited
US2641238A
Cited
US2581160A
Cited
US2784708A
Cited
GB690003A
Cited
US2667840A
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 |