Patent US2543451A successfully refreshed from Google Patents.
US2543451A
Expired / Lapsed
US
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Footrest lift attachment for chiropractic tables
Assignee: Individual
•
Filing: 1950-02-02
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Granted: 1951-02-27
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Expires: 1970-02-02
Abstract
No abstract record available.
Inventors
- 👤 Axel V Fenander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:10
CPC Classifications
A; A61; A61G; A61G13/00; A61G13/10; A61G13/12; A61G13/101; A61G13/1205; A61G13/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US490540A
Cited
US1079795A
Cited
US1582950A
Cited
US1823248A
Cited
US2067891A
Cited
US2381922A
Cited
US2470161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |