Patent US2990108A successfully refreshed from Google Patents.
US2990108A
Expired / Lapsed
US
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Compressor with annular discharge diffuser
Assignee: Curtiss Wright Corp
•
Filing: 1957-03-04
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Granted: 1961-06-27
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Expires: 1977-03-04
Abstract
No abstract record available.
Inventors
- 👤 Wilton G Lundquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:53
CPC Classifications
F; F02; F02K; F02K3/00; F02K3/02; F02K3/04; F01; F01D; F01D25/00; F01D25/16; F02C; F02C3/00; F02C3/04; F02C3/06; F02C7/00; F02C7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB587612A
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GB588096A
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US2611532A
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US2503006A
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US2601000A
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US2655787A
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US2709894A
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US2833115A
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US2840989A
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US2884759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |