US2992769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary fluid compressors
Assignee: PETTY LAB Inc
•
Filing: 1957-03-20
•
Granted: 1961-07-18
•
Expires: 1977-03-20
Abstract
No abstract record available.
Inventors
- 👤 Manzanera Lorenzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:29
CPC Classifications
F; F04; F04C; F04C29/00; F04C29/02; F04C29/023; F04C18/00; F04C18/30; F04C18/32; F04C18/324; F04C18/328; F04C29/0042; F04C29/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL20930C
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US1079560A
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US1350159A
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US1659107A
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US1679592A
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US1961592A
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US1935096A
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US2092104A
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US2147334A
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US2391648A
Cited
US2922378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |