US2352584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling the ratio of the flows of two fluids through conduits
Assignee: Askania Regulator Co
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Filing: 1940-11-04
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Granted: 1944-06-27
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Expires: 1960-11-04
Abstract
No abstract record available.
Inventors
- 👤 Ziebolz Herbert
- 👤 John C Vaaler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:24
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/035; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2521; Y10T137/2529
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) | 1947-06-27 | 1947-12-27 | 1948-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-06-27 | 1951-12-27 | 1952-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-06-27 | 1955-12-27 | 1956-06-27 | $7700.00 | Window Closed / Lapsed |