US5022385B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ergonomic anti-fatigue seating device and method
Assignee: Individual
•
Filing: 1989-11-02
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Granted: 1999-06-22
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Expires: 2009-11-02
Abstract
Abstract A method and apparatus is disclosed for periodically and rhythmically lifting first one hip of a seated person and then the other, thereby simulating the muscle stimulation and relaxation imparted to the person through walking while the person is seated. Inflatable air bags provide lift to the seated person while an electric timer and control valve control the timing and distance of inflation.
Inventors
- 👤 Richard D Harza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:15
CPC Classifications
A; A61; A61H; A61H1/00; A61H1/02; A61H1/0292; B; B60; B60N; B60N2/00; B60N2/90; B60N2/976; A61H2201/00; A61H2201/12; A61H2201/1238
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-06-21 | 2002-12-21 | 2003-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-06-21 | 2006-12-21 | 2007-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-06-21 | 2010-12-21 | 2011-06-22 | $7700.00 | Window Closed / Lapsed |