Patent US1857321A successfully refreshed from Google Patents.
US1857321A
Expired / Lapsed
US
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Fluid control device
Assignee: Individual
•
Filing: 1930-07-18
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Granted: 1932-05-10
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Expires: 1950-07-18
Abstract
No abstract record available.
Inventors
- 👤 Fred A Nemec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:35
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/10; F16K27/00; F16K27/06; F16K27/062; F16K35/00; F16K35/06; F16K5/02; F16K5/0207; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4358; Y10T137/4442; Y10T137/7069; Y10T137/7256
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-05-10 | 1935-11-09 | 1936-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-05-10 | 1939-11-09 | 1940-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-05-10 | 1943-11-09 | 1944-05-10 | $7700.00 | Window Closed / Lapsed |