US2073833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioner
Assignee: Individual
•
Filing: 1935-08-29
•
Granted: 1937-03-16
•
Expires: 1955-08-29
Abstract
No abstract record available.
Inventors
- 👤 Bothezat George De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:03
CPC Classifications
F; F25; F25B; F25B9/00; F25B9/002; F25B9/004; F02; F02C; F02C6/00; F02C6/04; F02C6/06; F24; F24F; F24F5/00
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) | 1940-03-15 | 1940-09-14 | 1941-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-03-15 | 1944-09-14 | 1945-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-03-15 | 1948-09-14 | 1949-03-16 | $7700.00 | Window Closed / Lapsed |