US1953923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidity controller
Assignee: Individual
•
Filing: 1932-04-23
•
Granted: 1934-04-10
•
Expires: 1952-04-23
Abstract
No abstract record available.
Inventors
- 👤 George W Bulley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:24
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14
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) | 1937-04-09 | 1937-10-09 | 1938-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-04-09 | 1941-10-09 | 1942-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-04-09 | 1945-10-09 | 1946-04-10 | $7700.00 | Window Closed / Lapsed |