Patent US3309797A successfully refreshed from Google Patents.
US3309797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-inversion device for sneakers
Assignee: Individual
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Filing: 1964-03-17
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Granted: 1967-03-21
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Expires: 1984-03-17
Abstract
No abstract record available.
Inventors
- 👤 Poitras Joseph Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:41
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/14; A43B7/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
AN ANTI-INVERSION DEVICE COMPRISING: A UNITARY, SCOOP-SHAPED BODY OF SUBSTANTIALLY INCOMPRESSIBLE MATERIAL ADAPTED TO FIT AROUND, AND RECEIVE THE OSCALCIS PORTION OF THE HUMAN FOOT TO SUPPORT THE SAME AGAINST ROCKING OR SIDE SLIPPAGE; SAID BODY HAVING AN INTEGRAL BOTTOM EXTENDING FORWARDLY FROM THE HEEL, THROUGH THE LONGITUDINAL ARCH TO PROXIMATE THE FORWARD TERMINUS OF THE METATARSALS OF THE FOOT, SAID BOTTOM BEING OF SUBSTANTIALLY UNIFORM, WEDGE-SHAPED SECTION INCREASING IN THICKNESS FROM THE OUTSIDE TO THE INSIDE THEREOF FOR SUPPORTING THE MEDIAL STRUCTURE OF THE FOOT FROM UNDERNEATH, SAID BODY HAVING AN INTEGRAL, UPSTANDING, SELF-SUPPORTING, INSIDE WALL EXTENDING FROM THE HEEL THROUGH THE LONGITUDINAL ARCH TO PROXIMATE THE FORWARD TERMINUS OF THE METATARSALS OF THE FOOT, SAID INSIDE WALL BEING OF SUBSTANTIALLY UNIFORM WEDGE-SHAPED SECTION DECREASING IN THICKNESS FROM THE LOWER TO THE UPPER PORTION THEREOF, AND HAVING A SUBSTANTIALLY VERTICAL, INTERMEDIATE PORTION, EXTENDING ALONGSIDE THE SCAPHOID, INTERNAL CUNEIFORM AND ENTIRE FIRST METATARSAL, FOR SUPPORTING THE MEDIAL STRUCTURE OF THE FOOT LATERALLY FROM THE INSIDE, THE LOWER AND INTERMEDIATE PORTIONS OF SAID INSIDE WALL AND THE INSIDE PORTION OF SAID BOTTOM BEING RIGID AND UNYIELDABLE AND THE REMAINING PORTIONS OF SAID BODY BEING SEMI-RIGID AND YIELDABLE.
Claim 2
Dependent Claim
196 words
AN ANTI-INVERSION DEVICE COMPRISING: A UNITARY, SCOOP-SHAPED BODY OF SUBSTANTIALLY INCOMPRESSIBLE MATERIAL ADAPTED TO FIT AROUND, AND RECEIVE THE OSCALCIS PORTION OF THE HUMAN FOOT TO SUPPORT THE SAME AGAINST ROCKING OR SIDE SLIPPAGE; SAID BODY HAVING AN INTEGRAL BOTTOM EXTENDING FORWARDLY FROM THE HEEL, THROUGH THE LONGITUDINAL ARCH TO PROXIMATE THE FORWARD TERMINUS OF THE METATARSALS OF THE FOOT, SAID BOTTOM BEING OF SUBSTANTIALLY UNIFORM, WEDGE-SHAPED SECTION INCREASING IN THICKNESS FROM THE OUTSIDE TO THE INSIDE THEREOF FOR SUPPORTING THE MEDIAL STRUCTURE OF THE FOOT FROM UNDERNEATH, SAID BODY HAVING AN INTEGRAL, UPSTANDING, SELF-SUPPORTING, INSIDE WALL EXTENDING FROM THE HEEL THROUGH THE LONGITUDINAL ARCH TO PROXIMATE THE FORWARD TERMINUS OF THE METATARSALS OF THE FOOT, SAID INSIDE WALL BEING OF SUBSTANTIALLY UNIFORM WEDGE-SHAPED SECTION DECREASING IN THICKNESS FROM THE LOWER TO THE UPPER PORTION THEREOF, AND HAVING A SUBSTANTIALLY VERTICAL, INTERMEDIATE PORTION, EXTENDING ALONGSIDE THE SCAPHOID, INTERNAL CUNEIFORM AND ENTIRE FIRST METATARSAL, FOR SUPPORTING THE MEDIAL STRUCTURE OF THE FOOT LATERALLY FROM THE INSIDE, THE LOWER AND INTERMEDIATE PORTIONS OF SAID INSIDE WALL AND THE INSIDE PORTION OF SAID BOTTOM BEING RIGID AND UNYIELDABLE AND THE REMAINING PORTIONS OF SAID BODY BEING SEMI-RIGID AND YIELDABLE.
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) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |