Patent US2800203A successfully refreshed from Google Patents.
US2800203A
Expired / Lapsed
US
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Adjustable valve for dampers
Assignee: Houdaille Industries Inc
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Filing: 1954-12-29
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Granted: 1957-07-23
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Expires: 1974-12-29
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Beyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:06
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/32; F16F9/44; B; B64; B64C; B64C13/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7069; Y10T137/7256
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1059138A
Cited
US1621876A
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US1693340A
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US2004902A
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US2286291A
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US2488932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |