US2616190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Walking angle corrective footwear
Assignee: Individual
•
Filing: 1946-06-14
•
Granted: 1952-11-04
•
Expires: 1966-06-14
Abstract
No abstract record available.
Inventors
- 👤 Reuben U Darby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:08
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/14; A43B7/1405; A43B7/1415; A43B7/142; A43B7/1425; A43B7/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1232790A
Cited
US1333737A
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US1497103A
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US1798807A
Cited
US1996215A
Cited
AU847232A
Cited
US2135504A
Cited
US2139263A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |