US2447423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary fuel distributing valve
Assignee: Individual
•
Filing: 1945-02-27
•
Granted: 1948-08-17
•
Expires: 1965-02-27
Abstract
No abstract record available.
Inventors
- 👤 George L Nies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:23
CPC Classifications
F; F02; F02M; F02M41/00; F02M41/02; F02M41/06; F02M69/00; F02M69/14; F02M69/147; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86501
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) | 1951-08-17 | 1952-02-16 | 1952-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-17 | 1956-02-16 | 1956-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-17 | 1960-02-16 | 1960-08-17 | $7700.00 | Window Closed / Lapsed |