Patent US4009528A successfully refreshed from Google Patents.
US4009528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sneaker with insole
Assignee: Individual
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Filing: 1976-03-02
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Granted: 1977-03-01
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Expires: 1996-03-02
Abstract
Abstract A sneaker or canvas shoe having an insole comprising a soft pad which is encased in a sealed film envelope to prevent the pad from absorbing moisture, odors and contamination. The envelope includes a chamber disposed beyond an end of the pad into which air can be forced, from the area of the envelope surrounding the pad, when pressure is applied to the insole by the weight of the wearer of the shoe. A part of the air chamber is heat sealed to the toe portion of the shoe, during the manufacture of the shoe, to retain the insole correctly positioned within the shoe.
Inventors
- 👤 John J. Villari, Jr.
- 👤 Charles Paraschos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:32
CPC Classifications
A; A43; A43B; A43B23/00; A43B23/24; A43B13/00; A43B13/14; A43B13/18; A43B13/20; A43B3/00; A43B3/0036; A43B3/0078
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
114 words
A sneaker or canvas shoe containing an insole including a foot sole-shaped pad and a casing enclosing said pad, said pad being formed of a resilient cushioning material capable of receiving and expelling air, two edge sealed sheets of thin elastic material constituting said casing and comprising a sealed air and moisture proof envelope having a main body portion of a shape and size to conformably enclose said pad and an appendage extending from the toe end of the main body portion to receive and entrap air expelled from the pad enclosing main body portion when pressure is applied to the insole for compressing the pad and collapsing the casing portion enclosing the pad.
Claim 2
Dependent Claim
114 words
A sneaker or canvas shoe containing an insole including a foot sole-shaped pad and a casing enclosing said pad, said pad being formed of a resilient cushioning material capable of receiving and expelling air, two edge sealed sheets of thin elastic material constituting said casing and comprising a sealed air and moisture proof envelope having a main body portion of a shape and size to conformably enclose said pad and an appendage extending from the toe end of the main body portion to receive and entrap air expelled from the pad enclosing main body portion when pressure is applied to the insole for compressing the pad and collapsing the casing portion enclosing the pad.
Claim 3
Dependent Claim
21 words
A shoe as in claim 1 said appendage including a restricted neck and an enlarged outer portion disposed beyond said neck.
Claim 4
Dependent Claim
46 words
A shoe as in claim 2, said shoe having an internally recessed toe portion, a part of said neck being disposed in said toe portion for securing the insole in the shoe and for positioning said enlarged outer portion in an exposed position above the shoe.
Claim 5
Dependent Claim
24 words
A shoe as in claim 3, said enlarged outer portion having a front side containing ornamentation animated by inflation and deflation of the appendage.
Claim 6
Dependent Claim
13 words
A shoe as in claim 1 said pad being formed of noncellular foam.
Claim 7
Dependent Claim
30 words
A shoe as in claim 5, said appendage having a vent port through which air can be evacuated from the casing prior to heat sealing and closing of said port.
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) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |