Patent US2483939A successfully refreshed from Google Patents.
US2483939A
Expired / Lapsed
US
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Pilot and buhner control
Assignee: —
•
Filing: —
•
Granted: 1949-10-04
•
Expires: 1966-10-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:27
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; F; F23; F23N; F23N1/00; F23N1/02; F23N1/027; F23N2227/00; F23N2227/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US477545A
Cited
US1812788A
Cited
US2204791A
Cited
US2185436A
Cited
USRE22688E
Cited
US2362247A
Cited
US2392065A
Cited
US2385155A
Cited
US2455306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |