US2826048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating apparatus for cooling room air
Assignee: Motors Liquidation Co
•
Filing: 1954-08-27
•
Granted: 1958-03-11
•
Expires: 1974-08-27
Abstract
No abstract record available.
Inventors
- 👤 Harold A Wheeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:01
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/02; F24F1/04; F24F1/022; F24F1/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2262261A
Cited
US2290973A
Cited
US2357362A
Cited
US2357627A
Cited
US2408973A
Cited
US2472792A
Cited
US2730873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |