US2419233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling unit
Assignee: Scovill Inc
•
Filing: 1944-03-11
•
Granted: 1947-04-22
•
Expires: 1964-03-11
Abstract
No abstract record available.
Inventors
- 👤 Donald L Spender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:14
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/105; F28F1/12; F28F1/14; Y; Y10; Y10S; Y10S165/00; Y10S165/327; Y10S165/328; Y10S165/33
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1697818A
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FR667479A
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US1834736A
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US1976101A
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US2176657A
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US2289984A
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US2336231A
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US2341752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-21 | 1950-10-21 | 1951-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-21 | 1954-10-21 | 1955-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-21 | 1958-10-21 | 1959-04-22 | $7700.00 | Window Closed / Lapsed |