US2044646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control mechanism
Assignee: FOURS ET APP STEIN SA
•
Filing: 1933-10-18
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Granted: 1936-06-16
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Expires: 1953-10-18
Abstract
No abstract record available.
Inventors
- 👤 Stein Charles Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:34
CPC Classifications
F; F23; F23L; F23L1/00; F23L1/02; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7797; Y10T137/78; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2154; Y10T74/2156
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) | 1939-06-16 | 1939-12-16 | 1940-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-06-16 | 1943-12-16 | 1944-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-06-16 | 1947-12-16 | 1948-06-16 | $7700.00 | Window Closed / Lapsed |