Patent US3170251A successfully refreshed from Google Patents.
US3170251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antiskid attachment for shoes
Assignee: Individual
•
Filing: 1963-05-03
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Granted: 1965-02-23
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Expires: 1983-05-03
Abstract
No abstract record available.
Inventors
- 👤 Patrick Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:22
CPC Classifications
A; A43; A43C; A43C15/00; A43C15/16; A43C15/161
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
AN ANTI-SKID SHOE PROVIDED WITH A SOLE HAVING RECESSED AREAS IN THE UPPER FACE THEREOF; A PATTERN OF PASSAGES IN EACH RECESSED AREA EXTENDING THROUGH SAID SOLE, ANTI-SKID PLATES MOVABLE VERTICALLY IN SAID RECESSED AREAS AND FORMED WITH A PLURALITY OF SHARPENED SPIKES SLIDABLE IN SAID PASSAGES AS THE WEARER''S WEIGHT IS SHIFTED FROM ONE FOOT TO THE OTHER; RESILIENT PADS SECURED TO SAID PLATES; SAID SPIKES HAVING RECIPROCAL MOVEMENT IN SAID SOLE
Claim 2
Dependent Claim
73 words
AN ANTI-SKID SHOE PROVIDED WITH A SOLE HAVING RECESSED AREAS IN THE UPPER FACE THEREOF; A PATTERN OF PASSAGES IN EACH RECESSED AREA EXTENDING THROUGH SAID SOLE, ANTI-SKID PLATES MOVABLE VERTICALLY IN SAID RECESSED AREAS AND FORMED WITH A PLURALITY OF SHARPENED SPIKES SLIDABLE IN SAID PASSAGES AS THE WEARER''S WEIGHT IS SHIFTED FROM ONE FOOT TO THE OTHER; RESILIENT PADS SECURED TO SAID PLATES; SAID SPIKES HAVING RECIPROCAL MOVEMENT IN SAID SOLE
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |