US2441270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating system and heat exchanger therefor
Assignee: Peerless of America Inc
•
Filing: 1944-09-16
•
Granted: 1948-05-11
•
Expires: 1964-09-16
Abstract
No abstract record available.
Inventors
- 👤 Anthony F Hoesel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:45
CPC Classifications
F; F25; F25B; F25B39/00
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) | 1951-05-11 | 1951-11-10 | 1952-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-11 | 1955-11-10 | 1956-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-11 | 1959-11-10 | 1960-05-11 | $7700.00 | Window Closed / Lapsed |