US2182569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof mounted air conditioner
Assignee: Houde Engineering Corp
•
Filing: 1937-01-21
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Granted: 1939-12-05
•
Expires: 1957-01-21
Abstract
No abstract record available.
Inventors
- 👤 Ralph F Peo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:19
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/32; B60H1/3204; B60H1/3229; B60H1/00007; B60H1/00207; B60H2001/00235; Y; Y10; Y10S; Y10S62/00; Y10S62/16
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) | 1942-12-04 | 1943-06-05 | 1943-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-12-04 | 1947-06-05 | 1947-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-12-04 | 1951-06-05 | 1951-12-05 | $7700.00 | Window Closed / Lapsed |