Patent US3044686A successfully refreshed from Google Patents.
US3044686A
Expired / Lapsed
US
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Rotary compressor
Assignee: Individual
•
Filing: 1958-02-25
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Granted: 1962-07-17
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Expires: 1978-02-25
Abstract
No abstract record available.
Inventors
- 👤 Vadim S Makaroff
- 👤 Alexis E Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:11
CPC Classifications
F; F04; F04C; F04C18/00; F04C18/30; F04C18/32; F04C18/322
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR471645A
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US1664733A
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US1491813A
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US1681583A
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DE471873C
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GB358464A
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US1922423A
Cited
DE687416C
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US2195835A
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DE717611C
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US2457221A
Cited
US2643817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |