Patent US3977093A successfully refreshed from Google Patents.
US3977093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cold weather shoe
Assignee: Lee Raymond Organization Inc
•
Filing: 1976-01-19
•
Granted: 1976-08-31
•
Expires: 1996-01-19
Abstract
Abstract A hollow heel is movably mounted in the heel area of the bottom of a shoe. A battery is mounted in the heel. Electric heating elements are mounted at the bottom of the shoe in the area of the sole thereof. A switch at the bottom of the shoe in the heel area thereof is operable by the heel of the foot of a wearer. A circuit at the bottom of the shoe electrically connects the battery, the heating elements and the switch in circuit whereby the heating elements are selectively energized by the battery via the switch.
Inventors
- 👤 Gilbert L. Santroch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:41
CPC Classifications
A; A43; A43B; A43B3/00; A43B3/34; A43B3/35
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
143 words
A cold weather shoe having an enclosure having a bottom with an inside surface and an outside surface, a sole on the outside surface of the bottom and a heel area on the outside surface of the bottom, said cold weather shoe comprising a hollow heel movably mounted in the heel area of the bottom of the shoe; battery means mounted in the heel; electric heating elements mounted at the bottom of the shoe in the area of the sole thereof; switch means at the bottom of the shoe in the heel area thereof and operable by the heel of the foot of a wearer; and circuit means at the bottom of the shoe electrically connecting the battery means, the heating elements and the switch means in circuit whereby the heating elements are selectively energized by the battery means via said switch means.
Claim 2
Dependent Claim
143 words
A cold weather shoe having an enclosure having a bottom with an inside surface and an outside surface, a sole on the outside surface of the bottom and a heel area on the outside surface of the bottom, said cold weather shoe comprising a hollow heel movably mounted in the heel area of the bottom of the shoe; battery means mounted in the heel; electric heating elements mounted at the bottom of the shoe in the area of the sole thereof; switch means at the bottom of the shoe in the heel area thereof and operable by the heel of the foot of a wearer; and circuit means at the bottom of the shoe electrically connecting the battery means, the heating elements and the switch means in circuit whereby the heating elements are selectively energized by the battery means via said switch means.
Claim 3
Dependent Claim
17 words
A cold weather shoe as claimed in claim 1, wherein the battery means comprises a rechargeable battery.
Claim 4
Dependent Claim
29 words
A cold weather shoe as claimed in claim 1, wherein the circuit means is positioned between the outside surface of the bottom of the shoe and the sole thereof.
Claim 5
Dependent Claim
18 words
A cold weather shoe as claimed in claim 1, wherein the heel is pivotally mounted on the shoe.
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) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |