US2209999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Summer air conditioning unit
Assignee: Individual
•
Filing: 1938-01-10
•
Granted: 1940-08-06
•
Expires: 1958-01-10
Abstract
No abstract record available.
Inventors
- 👤 Harry M Patch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:20
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/04; F24F1/00; F24F1/0007; F24F1/0059; F24F1/0087; Y; Y02; Y02B; Y02B30/00; Y02B30/54; Y10; Y10S; Y10S261/00; Y10S261/44
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) | 1943-08-06 | 1944-02-05 | 1944-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-08-06 | 1948-02-05 | 1948-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-08-06 | 1952-02-05 | 1952-08-06 | $7700.00 | Window Closed / Lapsed |