Patent US2726515A successfully refreshed from Google Patents.
US2726515A
Expired / Lapsed
US
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Self-contained heat exchange plates with electric resistance
Assignee: Dole Refrigerating Co
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Filing: 1953-10-09
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Granted: 1955-12-13
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Expires: 1973-10-09
Abstract
No abstract record available.
Inventors
- 👤 Herman W Kleist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:50
CPC Classifications
F; F25; F25D; F25D21/00; F25D21/06; F25D21/12; F25B; F25B43/00; F25B43/006; F25B47/00; F25B47/02; F25B47/022; F25D21/08; Y; Y10; Y10S; Y10S62/00; Y10S62/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-12 | 1959-06-13 | 1959-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-12 | 1963-06-13 | 1963-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-12 | 1967-06-13 | 1967-12-13 | $7700.00 | Window Closed / Lapsed |