Patent US2668530A successfully refreshed from Google Patents.
US2668530A
Expired / Lapsed
US
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Vibration bed
Assignee: Individual
•
Filing: 1952-03-17
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Granted: 1954-02-09
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Expires: 1972-03-17
Abstract
No abstract record available.
Inventors
- 👤 John A Tackaberry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:12
CPC Classifications
A; A47; A47C; A47C21/00; A47C21/006; A61; A61H; A61H2201/00; A61H2201/01; A61H2201/0119; A61H2201/0138; A61H2201/0142; A61H23/00; A61H23/02; A61H23/0254; A61H23/0263
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) | 1957-02-08 | 1957-08-10 | 1958-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-08 | 1961-08-10 | 1962-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-08 | 1965-08-10 | 1966-02-09 | $7700.00 | Window Closed / Lapsed |