Patent US1015326A successfully refreshed from Google Patents.
US2237239A
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Refrigeration apparatus
Assignee: Fedders Manufacturing Co Inc
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Filing: 1935-02-26
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Granted: 1941-04-01
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Expires: 1955-02-26
Abstract
No abstract record available.
Inventors
- 👤 Lawrence C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:40
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/24; F28F1/32; F28D; F28D7/00; F28D7/08; F28D7/082; F28D7/085; F28D7/087; F28F9/00; F28F9/02; F28F9/026; F28F9/0282
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) | 1944-03-31 | 1944-09-30 | 1945-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-03-31 | 1948-09-30 | 1949-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-03-31 | 1952-09-30 | 1953-04-01 | $7700.00 | Window Closed / Lapsed |