US1994912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor driven humidifier
Assignee: Westinghouse Electric Corp
•
Filing: 1933-05-03
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Granted: 1935-03-19
•
Expires: 1953-05-03
Abstract
No abstract record available.
Inventors
- 👤 Paul E Hochstetter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:31
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/06; B; B01; B01F; B01F23/00; B01F23/20; B01F23/21; B01F23/213; B01F23/2131; B01F23/21311; B01F23/21312
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) | 1938-03-18 | 1938-09-17 | 1939-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-03-18 | 1942-09-17 | 1943-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-03-18 | 1946-09-17 | 1947-03-19 | $7700.00 | Window Closed / Lapsed |