Patent US2305842A successfully refreshed from Google Patents.
Patent US2060589A successfully refreshed from Google Patents.
US2060589A
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US
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Refrigeration
Assignee: Johnson Service Co
•
Filing: 1935-10-02
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Granted: 1936-11-10
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Expires: 1955-10-02
Abstract
No abstract record available.
Inventors
- 👤 Carl A Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:08
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/30; F25B41/31; F25B41/33; F25B2600/00; F25B2600/21; Y; Y10; Y10S; Y10S261/00; Y10S261/34; Y10S62/00; Y10S62/01
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) | 1939-11-10 | 1940-05-11 | 1940-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-11-10 | 1944-05-11 | 1944-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-11-10 | 1948-05-11 | 1948-11-10 | $7700.00 | Window Closed / Lapsed |