US2771875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Posture improving device
Assignee: Individual
•
Filing: 1951-10-31
•
Granted: 1956-11-27
•
Expires: 1971-10-31
Abstract
No abstract record available.
Inventors
- 👤 Forrest D Cason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:50
CPC Classifications
A; A61; A61H; A61H1/00; A61H1/02; A61H1/0218; A61H23/00; A61H23/02; A61H23/0254; A61H23/0263; A61H1/001; A61H1/005; A61H1/0292; A61H2201/00; A61H2201/01; A61H2201/0119; A61H2201/0138; A61H2201/0142; A61H2201/0192; A61H2201/12; A61H2201/1207; A61H2201/1215; A61H2201/16; A61H2201/1602; A61H2201/1604; A61H2201/1609; A61H2201/1623; A61H2201/1628; A61H2201/164; A61H2201/1657; A61H2201/1676; A61H2201/1678; A61H2205/00; A61H2205/08; A61H2205/083; A61H2205/10; A61H2205/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2420965A
Cited
US2548408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |