US4930231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shoe sole structure
Assignee: Individual
•
Filing: 1989-02-07
•
Granted: 1990-06-05
•
Expires: 2009-02-07
Abstract
Abstract An improved shoe sole structure, wherein the sole made of rubber comprises a plurality of crosswise parallel grooves in the upper face of the front half section and a large recess in the upper face of the rear half section, and the grooves are filled in and glued with wooden strips and the recess filled in and glued with a wooden board.
Inventors
- 👤 Su H. Liu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:23
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/14
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
63 words
A shoe sole structure comprising: a flexible sole having a front portion provided with a plurality of spaced parallel transverse grooves in an upper face thereof and wooden strips located in the grooves; and a rear portion provided with a recess in an upper face thereof extending over a major portion of the rear portion and a wooden board located in the recess.
Claim 2
Dependent Claim
63 words
A shoe sole structure comprising: a flexible sole having a front portion provided with a plurality of spaced parallel transverse grooves in an upper face thereof and wooden strips located in the grooves; and a rear portion provided with a recess in an upper face thereof extending over a major portion of the rear portion and a wooden board located in the recess.
Claim 3
Dependent Claim
27 words
The shoe sole structure according to claim 1, wherein the wooden strips and the wooden board are glued in position in the grooves and the recess, respectively.
Claim 4
Dependent Claim
14 words
The shoe sole structure according to claim 1, wherein the sole is of rubber.
Claim 5
Dependent Claim
10 words
A shoe having a sole structure according to claim 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-06-04 | 1993-12-04 | 1994-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-04 | 1997-12-04 | 1998-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-04 | 2001-12-04 | 2002-06-05 | $7700.00 | Window Closed / Lapsed |