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US3102347A
Expired / Lapsed
US
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Safety shoe and instep guard therefor
Assignee: Individual
•
Filing: 1961-10-11
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Granted: 1963-09-03
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Expires: 1981-10-11
Abstract
No abstract record available.
Inventors
- 👤 Frank B Griswold
- 👤 William K Banister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:51
CPC Classifications
A; A43; A43C; A43C13/00; A43C13/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A SAFETY SHOE HAVING AN INSTEP GUARD OF A COMPOUND CURVATURE CONFORMING GENERALLY TO THE SHAPE OF A HUMAN INSTEP, THE GUARD BEING SECURED TO THE SHOE ADJACENT AT LEAST THE LOWER END OF THE GUARD AND BEING COMPRISED OF A PLURALITY OF ELONGATED ARCHED RIGID STRIPS EXTENDING TRANSVERSELY OF THE LENGTH OF THE GUARD, AND MEANS ARTICULATELY INTERCONNECTING A PLURALITY OF THE STRIPS WITH THE EDGES OF ADJACENT STRIPS OVERLAPPING EACH OTHER, THERE BEING FOUR SAID MEANS PASSING THROUGH EACH OF A PLURALITY OF THE STRIPS ONE ADJACENT EACH JUNCTION OF AN END AND A TRANSVERSE EDGE OF THE STRIP.
Claim 2
Dependent Claim
101 words
A SAFETY SHOE HAVING AN INSTEP GUARD OF A COMPOUND CURVATURE CONFORMING GENERALLY TO THE SHAPE OF A HUMAN INSTEP, THE GUARD BEING SECURED TO THE SHOE ADJACENT AT LEAST THE LOWER END OF THE GUARD AND BEING COMPRISED OF A PLURALITY OF ELONGATED ARCHED RIGID STRIPS EXTENDING TRANSVERSELY OF THE LENGTH OF THE GUARD, AND MEANS ARTICULATELY INTERCONNECTING A PLURALITY OF THE STRIPS WITH THE EDGES OF ADJACENT STRIPS OVERLAPPING EACH OTHER, THERE BEING FOUR SAID MEANS PASSING THROUGH EACH OF A PLURALITY OF THE STRIPS ONE ADJACENT EACH JUNCTION OF AN END AND A TRANSVERSE EDGE OF THE STRIP.
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) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |