US2444957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flash reducer
Assignee: United States, WAR, Secretary of
•
Filing: 1944-09-27
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Granted: 1948-07-13
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Expires: 1964-09-27
Abstract
No abstract record available.
Inventors
- 👤 Leslie A Skinner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:26
CPC Classifications
F; F42; F42B; F42B29/00; F02; F02K; F02K9/00; F02K9/08; F02K9/32; F02K9/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-13 | 1952-01-12 | 1952-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-13 | 1956-01-12 | 1956-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-13 | 1960-01-12 | 1960-07-13 | $7700.00 | Window Closed / Lapsed |