US2914239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for controlling motor compressors
Assignee: JUNKERS MASCHINEN und METALLBA
•
Filing: 1955-10-19
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Granted: 1959-11-24
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Expires: 1975-10-19
Abstract
No abstract record available.
Inventors
- 👤 Wagenseil Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:58
CPC Classifications
F; F02; F02C; F02C5/00; F02C5/06; F02C5/08; F02B; F02B71/00; F04; F04B; F04B31/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1129009A
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US1419316A
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US1383258A
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US2064976A
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US2246701A
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US2467513A
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US2653753A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |