Patent US2803022A successfully refreshed from Google Patents.
US2803022A
Expired / Lapsed
US
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Head and upper body support
Assignee: Individual
•
Filing: 1954-12-17
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Granted: 1957-08-20
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Expires: 1974-12-17
Abstract
No abstract record available.
Inventors
- 👤 Francis Y Wynkoop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:13
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A47; A47G; A47G9/00; A47G9/10; A47G9/1009; A61G; A61G7/00; A61G7/05; A61G7/065; A61G7/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |