US1464110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidifying air vent
Assignee: Individual
•
Filing: 1920-08-05
•
Granted: 1923-08-07
•
Expires: 1940-08-05
Abstract
No abstract record available.
Inventors
- 👤 Ramsey Allan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:44
CPC Classifications
F; F24; F24D; F24D19/00; F24D19/08; F24D19/081; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1926-08-06 | 1927-02-05 | 1927-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-08-06 | 1931-02-05 | 1931-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-08-06 | 1935-02-05 | 1935-08-07 | $7700.00 | Window Closed / Lapsed |