Patent US2448797A successfully refreshed from Google Patents.
US2448797A
Expired / Lapsed
US
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Device for exercising and treating feet
Assignee: Individual
•
Filing: 1943-09-06
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Granted: 1948-09-07
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Expires: 1963-09-06
Abstract
No abstract record available.
Inventors
- 👤 Gustlin Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:32
CPC Classifications
A; A61; A61H; A61H15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1343432A
Cited
US1481038A
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GB167205A
Cited
US1573652A
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US1722866A
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GB295706A
Cited
CH130571A
Cited
US1822370A
Cited
GB393191A
Cited
US2104927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |