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US4277358A Expired / Lapsed US ⏱️ 0.0 years remaining

Environmentally degradable soap bar system

Assignee: Individual
•
Filing: 1979-09-19
•
Granted: 1981-07-07
•
Expires: 1999-09-19
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Abstract

Abstract An environmentally degradable soap bar system (10) which includes a degradable insert member (14) centrally positioned and molded internal to a soap bar (12). The degradable insert member (14) is generally formed from a water soluble plastic composition, which may be selected from a group consisting of polyvinyl alcohol, hydroxypropyl cellulose, and polyethylene oxide. The degradable insert member (14) is substantially planar in contour and includes a plurality of through openings (24). Soap material is molded around the degradable insert member (14) and within the through openings (24). The soap material molded within the through openings (24) secures the degradable insert member (14) to the surrounding soap material and provides a mechanism for securing the degradable insert member (14) to the soap bar (12) independent of wear orientation imposed on the soap bar (12) during use. Subsequent to use, the degradable insert member (14) may be disposed of by generally dissolving the degradable insert member (14) in an aqueous solution.

Inventors

  • 👤 LaMar Hopkins

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 12:23
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/04; C11D17/048; C11D9/00; C11D9/04; C11D9/22; C11D9/225

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 99 words
An environmentally degradable soap bar system comprising: (a) a soap bar having a predetermined contour; (b) an insert member formed of an environmentally degradable composition and positionally located internal said soap bar, said insert member being formed from a water soluble plastic composition selected from the group consisting of hydroxypropyl cellulose, and polyethylene oxide, said insert member being dissolved subsequent to said soap bar being worn away thereby exposing said insert member to the external environment; and, (c) means for securing said insert member to said soap bar independent of wear orientation imposed on said soap bar during use.
Claim 2
Dependent Claim 99 words
An environmentally degradable soap bar system comprising: (a) a soap bar having a predetermined contour; (b) an insert member formed of an environmentally degradable composition and positionally located internal said soap bar, said insert member being formed from a water soluble plastic composition selected from the group consisting of hydroxypropyl cellulose, and polyethylene oxide, said insert member being dissolved subsequent to said soap bar being worn away thereby exposing said insert member to the external environment; and, (c) means for securing said insert member to said soap bar independent of wear orientation imposed on said soap bar during use.
Claim 3
Dependent Claim 25 words
The environmentally degradable soap bar system as recited in claim 1 where said soap bar is formed of soap material molded around said insert member.
Claim 4
Dependent Claim 34 words
The environmentally degradable soap bar system as recited in claim 2 where said securement means includes at least one partial recess formed within said insert member, said soap material being molded internal said recess.
Claim 5
Dependent Claim 41 words
The environmentally degradable soap bar system as recited in claim 3 where said securement means includes at least one through opening formed through said insert member, said soap material being molded to substantially fill said through opening internal said insert member.
Claim 6
Dependent Claim 31 words
The environmentally degradable soap bar system as recited in claim 4 where said soap material is molded internal said through opening and external said insert member substantially in one piece formation.
Claim 7
Dependent Claim 41 words
The environmentally degradable soap bar system as recited in claim 1 where said insert member is contoured to include a blunt peripheral wall boundary, said wall boundary having a predetermined radius of curvature to minimize sharp edges of said insert member.
Claim 8
Dependent Claim 27 words
The environmentally degradable soap bar system as recited in claim 1 where said insert member is centrally located in a positionally fixed location within said soap bar.
Claim 9
Dependent Claim 37 words
The environmentally degradable soap bar system as recited in claim 1 where said insert member includes a volume contour similar in contour to said soap bar, said insert member being substantially centrally located within said soap bar.

References Cited (Backward Citations)

US108584A Cited
US1997474A Cited
CA835913A Cited
US648247A Cited
US1707334A Cited
GB881767A Cited
US3413229A Cited
US3773672A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-07-06 1985-01-05 1985-07-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-07-06 1989-01-05 1989-07-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-07-06 1993-01-05 1993-07-07 $7700.00 Window Closed / Lapsed

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