Patent US3864248A successfully refreshed from Google Patents.
Patent US2159748A successfully refreshed from Google Patents.
US2159748A
Expired / Lapsed
US
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Refrigerating apparatus
Assignee: Individual
•
Filing: 1934-01-19
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Granted: 1939-05-23
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Expires: 1954-01-19
Abstract
No abstract record available.
Inventors
- 👤 Ralph K Miller
- 👤 Robert R Candor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:48
CPC Classifications
F; F25; F25B; F25B1/00; F25B1/04; F25B1/047; F25B31/00; F25B31/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-05-22 | 1942-11-21 | 1943-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-05-22 | 1946-11-21 | 1947-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-05-22 | 1950-11-21 | 1951-05-23 | $7700.00 | Window Closed / Lapsed |