Patent US2674993A successfully refreshed from Google Patents.
US2674993A
Expired / Lapsed
US
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Vibrating board
Assignee: Individual
•
Filing: 1952-09-27
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Granted: 1954-04-13
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Expires: 1972-09-27
Abstract
No abstract record available.
Inventors
- 👤 Harrell Geraldine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:49
CPC Classifications
A; A61; A61H; A61H23/00; A61H23/02; A61H23/0254; A61H23/0263; A61H1/00; A61H1/005; A61H2023/0281; A61H2201/00; A61H2201/01; A61H2201/0119; A61H2201/0138; A61H2201/0142; A61H2203/00; A61H2203/04; A61H2203/0406; A61H2205/00; A61H2205/08; A61H2205/081
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) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |