US2646061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flush type humidifier
Assignee: Skuttle Manufacturing Co
•
Filing: 1947-08-19
•
Granted: 1953-07-21
•
Expires: 1967-08-19
Abstract
No abstract record available.
Inventors
- 👤 Edward W Bottum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:24
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/04; Y; Y10; Y10S; Y10S261/00; Y10S261/46; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2774; Y10T137/2781; Y10T137/2842; Y10T137/2924; Y10T137/7287; Y10T137/7297; Y10T137/73; Y10T137/8593; Y10T137/86187
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |