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Patent US2497751A successfully refreshed from Google Patents.
US2497751A
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Vibratory therapeutic chair
Assignee: Individual
•
Filing: 1947-12-12
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Granted: 1950-02-14
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Expires: 1967-12-12
Abstract
No abstract record available.
Inventors
- 👤 William L Wettlaufer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:52
CPC Classifications
A; A61; A61H; A61H23/00; A61H23/02; A61H23/0254; A61H23/0263; A61H2023/0281; A61H2201/00; A61H2201/01; A61H2201/0119; A61H2201/0138; A61H2201/0149; A61H2205/00; A61H2205/08; A61H2205/081
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1984397A
Cited
US2235183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |