US2573583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plate type refrigerant evaporator
Assignee: KOLD HOLD Manufacturing CO
•
Filing: 1947-01-03
•
Granted: 1951-10-30
•
Expires: 1967-01-03
Abstract
No abstract record available.
Inventors
- 👤 Thomas O Lester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:53
CPC Classifications
F; F25; F25D; F25D3/00; F25D3/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1985381A
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US2136153A
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US2080310A
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US2085746A
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US2146823A
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US2154217A
Cited
US2405432A
Cited
US2386889A
Cited
US2356779A
Cited
US2356780A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-29 | 1955-04-30 | 1955-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-29 | 1959-04-30 | 1959-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-29 | 1963-04-30 | 1963-10-30 | $7700.00 | Window Closed / Lapsed |