Patent US4114296A successfully refreshed from Google Patents.
US4114296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interchangeable sandal
Assignee: Individual
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Filing: 1977-06-06
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Granted: 1978-09-19
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Expires: 1997-06-06
Abstract
Abstract A shoe adapted for facile interchangeability into a multiplicity of styles comprising an outsole having a heel portion, with there being an intervening zone of flexure therebetween. Forward and rearward inner soles are provided on said outsole and with their adjacent end portions in overlapping relationship for relative slidability during foot movement. A retaining strap extending lengthwise of the shoe serves to optionally maintain a rear upper in operative position as well as to promote integration of the shoe components in selected mode of wear. A readily widthwise adjustable front upper or vamp is detachably mounted upon the forward portion of said outsole and replaceable by a thong detachable to the forward portion of the sole.
Inventors
- 👤 Gardner M. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:02
CPC Classifications
A; A43; A43B; A43B3/00; A43B3/12; A43B3/122; A43B3/24
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
58 words
An article of footwear comprising an outsole of unitary molded construction having a forward portion and a rearward heel portion, there being a transversely extending, upwardly opening depression between said forward and rearward outsole portions constituting a zone of flexure, said depression comprising transversely extending first and second inclined surfaces, and upper-defining means detachably mounted on said outsole.
Claim 2
Dependent Claim
58 words
An article of footwear comprising an outsole of unitary molded construction having a forward portion and a rearward heel portion, there being a transversely extending, upwardly opening depression between said forward and rearward outsole portions constituting a zone of flexure, said depression comprising transversely extending first and second inclined surfaces, and upper-defining means detachably mounted on said outsole.
Claim 3
Dependent Claim
69 words
An article of footwear as defined in claim 1 and further characterized by a first insole detachably disposed upon said forward portion of said outsole and having a free rearward end portion overlying said zone of flexure, and a second insole disposed on said outsole rearward heel portion and having a forward portion underlying said rearward end portion of said first insole and being in relative slideable relationship thereto.
Claim 4
Dependent Claim
76 words
An article of footwear as defined in claim 1 and further characterized by a first insole detachably engaged on said forward position of said outsole, a second insole engaged on said outsole rearward portion, and a retaining strap for diposition longitudinally of said article of footwear, there being means anchoring the rearward end of said strap to said outsole heel portion, and means detachably securing said strap in overlying relationship upon said first and second insoles.
Claim 5
Dependent Claim
112 words
An article of footwear as defined in claim 1 and further characterized by said upper-defining means including a forward upper for disposition across the front upper face of said outsole forward portion, and disengageable cooperating means provided on said forward upper and said outsole for detachably securing said forward upper in wearing position, said front upper having opposed lateral marginal portions provided with a plurality of spaced apart openings, hook-forming elements fixed in said outsole engageable with the front upper openings, and a first insole overlying said hook-forming elements and said front upper engaged laterally marginal portions for obscuring of the same, and means detachably securing said first insole upon said outsole.
Claim 6
Dependent Claim
45 words
An article of footwear as defined in claim 4 and further characterized by said hook-forming elements being directly toward the interior of said outsole, said front upper lateral marginal portions being turned inwardly in general underlying relationship to the central portion of said front upper.
Claim 7
Dependent Claim
54 words
An article of footwear as defined in claim 5 and further characterized by said front upper lateral marginal portions being comprised of discrete finger-like extensions, at least selected of said extensions having a plurality of spaced apart openings for selected engagement with the related hook-forming element for providing width adjustability to said front upper.
Claim 8
Dependent Claim
60 words
An article of footwear as defined in claim 1 and further characterized by said upper-defining means comprising a thong, means detachably engaging the lower forward end of said thong upon the forward portion of said outsole for upper and rearward extension therefrom, and a rear-upper detachably engaged on said rearward heel portion, and means interengaging said thong and said rear-upper.
Claim 9
Dependent Claim
35 words
An article of footwear as defined in claim 1 and further characterized by said heel portion embodying a peripherally progressing, outwardly opening recess, and a decorative endless band for optional detachable reception in said recess.
Claim 10
Dependent Claim
53 words
An article of footwear as defined in claim 1 and further characterized by said upper-defining means comprising a sling having a base portion for receiving the wearer's heel, a heel insole disposed on said outsole heel portion underlying said sling base portion, and interlaceable means detachably securing said sling upon said heel insole.
Claim 11
Dependent Claim
56 words
An article of footwear as defined in claim 9 and further characterized by said heel insole having a pair of spaced apart transversely extending solt-like openings, said sling base having an enlarged aperture exposing said slot-like openings, and an elongated flexible member threadable through said slot-like openings and overlying the aperture-adjacent portions of said sling base.
Claim 12
Dependent Claim
59 words
An article of footwear as defined in claim 10 and further characterized by said flexible member being a retaining strap having a rearward end anchored to said heel portion in the rearwardly directed side portion thereof, and having a length greater than that of said heel portion, there being means for detachably securing said strap to said outsole portion.
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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) | 1981-09-18 | 1982-03-20 | 1982-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-18 | 1986-03-20 | 1986-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-18 | 1990-03-20 | 1990-09-19 | $7700.00 | Window Closed / Lapsed |