US3694940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inner shoe for footwear
Assignee: Dr Justus Rieker & Co
•
Filing: 1970-10-20
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Granted: 1972-10-03
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Expires: 1990-10-20
Abstract
Abstract An inner shoe comprising a non-woven structure based on paper for fitting within footwear such as a ski boot to absorb perspiration. The inner shoe can be formed of one piece only by folding and joining the edges of the folded portions, or from two molded half-shells.
Inventors
- 👤 Rudolf Stohr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:20
CPC Classifications
A; A43; A43B; A43B19/00; A43B7/00; A43B7/34
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
25 words
A single usage type inexpensive inner shoe for footwear, said inner shoe comprising a structure made from a single ply of nonwoven paper base material.
Claim 2
Dependent Claim
25 words
A single usage type inexpensive inner shoe for footwear, said inner shoe comprising a structure made from a single ply of nonwoven paper base material.
Claim 3
Dependent Claim
31 words
An inner shoe as specified in claim 1, wherein said structure is of one piece unitary construction and includes at least one joining seam joining two engaging edges of said structure.
Claim 4
Dependent Claim
28 words
An inner shoe as specified in claim 1, wherein said structure further comprises two individual non-woven structural elements and at least one joining seam attaching said elements together.
Claim 5
Dependent Claim
33 words
An inner shoe as specified in claim 1, wherein said structure further includes at least one joining seam comprising juxtaposed edges of said structure and adhesive means securing said edges to each other.
Claim 6
Dependent Claim
23 words
An inner shoe as specified in claim 1, wherein said structure further includes a plastic coating on the outwardly facing upper surface thereof.
Claim 7
Dependent Claim
34 words
An inner shoe as specified in claim 5, wherein said structure further includes at least one joining seam comprising juxtaposed edges of said structure and a plastic weld securing said edges to each other.
Claim 8
Dependent Claim
27 words
An inner shoe as specified in claim 1, wherein said structure further includes at least one joining seam extending substantially in the longitudinal direction of the shoe.
Claim 9
Dependent Claim
20 words
An inner shoe as specified in claim 1, wherein said structure further comprises bottom edges thereof in mutually overlapping relation.
Claim 10
Dependent Claim
45 words
An inner shoe as specified in claim 1, wherein said structure includes an instep zone having an opening in the top thereof for insertion of a wearer''s foot, and a cut away portion extending from said opening, facilitating entry of said foot into said structure.
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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |