US2608053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable area diffuser or effuser
Assignee: Individual
•
Filing: 1946-05-03
•
Granted: 1952-08-26
•
Expires: 1966-05-03
Abstract
No abstract record available.
Inventors
- 👤 Davidson Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:55
CPC Classifications
F; F04; F04F; F04F5/00; F04F5/44; F04F5/46; F04F5/461; F02; F02K; F02K1/00; F02K1/06; F02K1/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB363365A
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DE626755C
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US2099412A
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US2280835A
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US2342262A
Cited
US2408099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |