US2327451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioner
Assignee: Motors Liquidation Co
•
Filing: 1941-10-27
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Granted: 1943-08-24
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Expires: 1961-10-27
Abstract
No abstract record available.
Inventors
- 👤 Lester E Perrine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:08
CPC Classifications
F; F25; F25B; F25B1/00; F25B1/06; F25B1/08; B; B60; B60H; B60H1/00; B60H1/32; B60H1/3202; F25B27/00; F25B27/02; B60H2001/3286; B60H2001/3295; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02A30/274
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) | 1946-08-23 | 1947-02-22 | 1947-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-08-23 | 1951-02-22 | 1951-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-08-23 | 1955-02-22 | 1955-08-24 | $7700.00 | Window Closed / Lapsed |