Patent US1711270A successfully refreshed from Google Patents.
US1711270A
Expired / Lapsed
US
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Refrigerating system
Assignee: COPELAND PRODUCTS Inc
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Filing: 1926-09-28
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Granted: 1929-04-30
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Expires: 1946-09-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas J Litle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:55
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/30; F25B41/37
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) | 1932-04-29 | 1932-10-29 | 1933-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-04-29 | 1936-10-29 | 1937-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-04-29 | 1940-10-29 | 1941-04-30 | $7700.00 | Window Closed / Lapsed |