Patent US1890205A successfully refreshed from Google Patents.
US1890205A
Expired / Lapsed
US
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Refrigerating apparatus
Assignee: W B PARKYN
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Filing: 1931-01-31
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Granted: 1932-12-06
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Expires: 1951-01-31
Abstract
No abstract record available.
Inventors
- 👤 Andresen George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:59
CPC Classifications
F; F25; F25B; F25B31/00; F25B31/02; F25B31/026; F25B1/00; F25B1/04; F25B1/047
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) | 1935-12-06 | 1936-06-06 | 1936-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-12-06 | 1940-06-06 | 1940-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-12-06 | 1944-06-06 | 1944-12-06 | $7700.00 | Window Closed / Lapsed |