US2956774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration dampers for bladed wheels
Assignee: Stalker Corp
•
Filing: 1954-09-28
•
Granted: 1960-10-18
•
Expires: 1974-09-28
Abstract
No abstract record available.
Inventors
- 👤 Edward A Stalker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:04
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/10; F01D5/12; F01D5/14; F01D5/16; Y; Y10; Y10S; Y10S416/00; Y10S416/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE393333C
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GB206362A
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US1544318A
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US2220918A
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CH240283A
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US2436087A
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GB595643A
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GB623525A
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US2660400A
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GB667979A
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GB711572A
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US2836392A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |