US4393605A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sports shoe
Assignee: Individual
•
Filing: 1981-05-18
•
Granted: 1983-07-19
•
Expires: 2001-05-18
Abstract
Abstract A sports shoe having a thick sole and an enclosed upper in which the toe cap is divided by means of articulating hinge joints into several narrow strips each of which enclose an acute angle with respect to longitudinal axis of the shoe. The articulating hinges are approximately parallel to each other and run from the inside edge of the shoe and towards the heel. The sole is provided with grooves running in parallel to and beneath the moving joints.
Inventors
- 👤 Georg Spreng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:38
CPC Classifications
A; A43; A43B; A43B5/00; A43B5/06; A43B23/00; A43B23/02; A43B23/0245; A43B23/0265; A43B23/027; A43B23/08; A43B23/081
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
66 words
A sports shoe having a sole and an enclosing upper, said upper having a toe cap, formed of a plurality of strips, articulatingly interconnected along parallel lines extending from the inside edge toward the heel of said shoe at an acute angle with the longitudinal axis of said shoe, said sole being provided with a plurality of grooves aligned with the articulating interconnections of said strips.
Claim 2
Dependent Claim
66 words
A sports shoe having a sole and an enclosing upper, said upper having a toe cap, formed of a plurality of strips, articulatingly interconnected along parallel lines extending from the inside edge toward the heel of said shoe at an acute angle with the longitudinal axis of said shoe, said sole being provided with a plurality of grooves aligned with the articulating interconnections of said strips.
Claim 3
Dependent Claim
26 words
The shoe, according to claim 1, wherein said toe cap is made of a unitary sheet and the articulating connections are provided by stitching said sheet.
Claim 4
Dependent Claim
39 words
The shoe, according to claim 1, wherein said toe cap is formed of a quilted unitary sheet having an upper and lower layer between which is located a filler and the articulating interconnections are provided by stitching said sheet.
Claim 5
Dependent Claim
35 words
The sports shoe, according to claim 1, 2 or 3, wherein that the grooves in the sole have in cross section a circular arc profile in and extend to the lateral edge of the shoe.
Claim 6
Dependent Claim
18 words
The sports shoe, according to claim 4, wherein the grooves are about 0.8 to 1.5 cm in width.
Claim 7
Dependent Claim
42 words
The sports shoe as defined in claim 1, 2 or 3 wherein the joints in the toe cap area and the grooves in the sole are arranged at an angle of about 60° to 80° to the longitudinal axis of the shoe.
Claim 8
Dependent Claim
24 words
The sports shoe, according to claim 1, wherein at least the toe cap is formed of leather and the sole of a plastic material.
Claim 9
Dependent Claim
25 words
The sports shoe, according to claim 1, wherein the toe and heel are pulled up and merge convexly with the running surface of the sole.
Claim 10
Dependent Claim
23 words
The sports shoe as defined in claim 8, wherein the sole is provided with grooves crossing the heel area in a transverse direction.
Claim 11
Dependent Claim
35 words
The sports shoe, according to claim 1, 2 or 3, wherein the number of joints in the toe cap and of the grooves in the sole are equal and about 3 to 5 in number.
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) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |