Patent US1499740A successfully refreshed from Google Patents.
US1499740A
Expired / Lapsed
US
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Compressor for refrigerating machinery
Assignee: Kelvinator Inc
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Filing: 1919-03-17
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Granted: 1924-07-01
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Expires: 1939-03-17
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Kolbe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:51
CPC Classifications
F; F25; F25B; F25B31/00
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) | 1927-07-01 | 1927-12-31 | 1928-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-07-01 | 1931-12-31 | 1932-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-07-01 | 1935-12-31 | 1936-07-01 | $7700.00 | Window Closed / Lapsed |