US2815900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air control vane for blower
Assignee: Individual
•
Filing: 1954-11-01
•
Granted: 1957-12-10
•
Expires: 1974-11-01
Abstract
No abstract record available.
Inventors
- 👤 Earl K Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:30
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/44; F04D29/46; F04D29/462
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE20668E
Cited
US1608938A
Cited
US2001522A
Cited
US2215281A
Cited
US2463769A
Cited
US2645411A
Cited
US2634806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |