US2885866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchange assembly and control
Assignee: Dole Refrigerating Co
•
Filing: 1955-04-28
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Granted: 1959-05-12
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Expires: 1975-04-28
Abstract
No abstract record available.
Inventors
- 👤 Herman W Kleist
- 👤 John E Hutchinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:45
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) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |