US3096817A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for humidifying an air stream
Assignee: American Air Filter Co Inc
•
Filing: 1960-04-13
•
Granted: 1963-07-09
•
Expires: 1980-04-13
Abstract
No abstract record available.
Inventors
- 👤 Frederic W Mckenna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:32
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/18; Y; Y10; Y10S; Y10S261/00; Y10S261/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US589771A
Cited
US1342214A
Cited
US1948647A
Cited
US1984658A
Cited
US2182788A
Cited
US2223634A
Cited
US2608436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |