US2606009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioner
Assignee: PORTABLE AIR COOLER AND HEATIN
•
Filing: 1949-10-10
•
Granted: 1952-08-05
•
Expires: 1969-10-10
Abstract
No abstract record available.
Inventors
- 👤 John E Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:02
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1436483A
Cited
US1815864A
Cited
US1866840A
Cited
US2075862A
Cited
US2105887A
Cited
US2165979A
Cited
US2201647A
Cited
US2156888A
Cited
US2333374A
Cited
US2319565A
Cited
US2387473A
Cited
US2404479A
Cited
US2456781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |