US2674404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbocompressor for refrigerating apparatus
Assignee: Louis Allis Co
•
Filing: 1950-12-26
•
Granted: 1954-04-06
•
Expires: 1970-12-26
Abstract
No abstract record available.
Inventors
- 👤 Theodore R Wieseman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:33
CPC Classifications
F; F25; F25B; F25B1/00; F25B1/04; F25B1/053
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1883288A
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US2000874A
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US1998087A
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US2196952A
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US2266107A
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US2260042A
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US2422968A
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US2411816A
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US2427541A
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US2516567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |