US2506192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fan regulator
Assignee: Individual
•
Filing: 1947-08-07
•
Granted: 1950-05-02
•
Expires: 1967-08-07
Abstract
No abstract record available.
Inventors
- 👤 Reginald W Beckett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:00
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/001; F23N; F23N3/00; F23N3/08; F23N3/085; F23N2233/00; F23N2233/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2300903A
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US1910949A
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US1916626A
Cited
US2040544A
Cited
US2140212A
Cited
US2156359A
Cited
US2310274A
Cited
US2191272A
Cited
US2287595A
Cited
US2315412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-01 | 1953-10-31 | 1954-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-01 | 1957-10-31 | 1958-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-01 | 1961-10-31 | 1962-05-02 | $7700.00 | Window Closed / Lapsed |