Patent US2516291A successfully refreshed from Google Patents.
US2516291A
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US
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Compressor control system
Assignee: Joy Manufacturing Co
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Filing: 1944-10-10
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Granted: 1950-07-25
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Expires: 1964-10-10
Abstract
No abstract record available.
Inventors
- 👤 Jess M Bartholomew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:27
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/06; F04B49/02; F04B49/022; F04B49/10; F04B49/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1786114A
Cited
US1864132A
Cited
US2137752A
Cited
US2221855A
Cited
US2147422A
Cited
US2267448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |