Patent US1622376A successfully refreshed from Google Patents.
US1622376A
Expired / Lapsed
US
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Apparatus for refrigerating systems
Assignee: Chicago Pneumatic Tool Co LLC
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Filing: 1925-09-08
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Granted: 1927-03-29
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Expires: 1945-09-08
Abstract
No abstract record available.
Inventors
- 👤 Ransom W Davenport
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:46
CPC Classifications
F; F25; F25B; F25B39/00; F25B39/02; F25B39/022; F25B39/024; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49359
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) | 1930-03-28 | 1930-09-27 | 1931-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-03-28 | 1934-09-27 | 1935-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-03-28 | 1938-09-27 | 1939-03-29 | $7700.00 | Window Closed / Lapsed |