US2093936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning device
Assignee: MONAD Corp
•
Filing: 1931-02-12
•
Granted: 1937-09-21
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Expires: 1951-02-12
Abstract
No abstract record available.
Inventors
- 👤 Harold J Spielmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:57
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; A; A23; A23B; A23B7/00; A23B7/14; A23B7/144; A23B7/148; F24F6/00; F24F6/12; F24F6/14; F24F2006/146; Y; Y10; Y10S; Y10S261/00; Y10S261/34
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) | 1940-09-20 | 1941-03-22 | 1941-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-09-20 | 1945-03-22 | 1945-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-09-20 | 1949-03-22 | 1949-09-21 | $7700.00 | Window Closed / Lapsed |