Patent US4172298A successfully refreshed from Google Patents.
US4172298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breast prosthesis
Assignee: AMOENA Corp (1987) A CORP OF GEORGIA
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Filing: 1977-05-25
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Granted: 1979-10-30
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Expires: 1997-05-25
Abstract
Abstract In a breast prosthesis comprising a one-piece flexible dished member which is free from air and has a shape simulating a female breast, said dished member comprises resiliently soft additive cross-linking two-component silicone rubber of an adhesive gelatinous consistency covered on each side by a plastics film, the plastics films being welded to each other along the rim of said dished member.
Inventors
- 👤 Cornelius Rechenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:50
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/52
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
125 words
A breast prosthesis comprising a one-piece flexible dished member which is free from air and has a shape simulating a female breast and has a cavity in its rear having a rear peripheral rim, wherein said dished member comprises a body member formed essentially of a resiliently soft cross-linking two component silicone rubber of an adhesive gelatinous consistency and being self restorative following deformation thereof to its original shape and a plastics film covering each side of said body member, the plastics films being bonded to each other along said rim and said rim having at least one recess formed therein permitting the free flow between said rim and the body of the wearer of said prosthesis of air between said cavity and the exterior.
Claim 2
Dependent Claim
125 words
A breast prosthesis comprising a one-piece flexible dished member which is free from air and has a shape simulating a female breast and has a cavity in its rear having a rear peripheral rim, wherein said dished member comprises a body member formed essentially of a resiliently soft cross-linking two component silicone rubber of an adhesive gelatinous consistency and being self restorative following deformation thereof to its original shape and a plastics film covering each side of said body member, the plastics films being bonded to each other along said rim and said rim having at least one recess formed therein permitting the free flow between said rim and the body of the wearer of said prosthesis of air between said cavity and the exterior.
Claim 3
Dependent Claim
13 words
The breast prosthesis defined in claim 1, wherein said plastics material comprises polyurethane.
Claim 4
Dependent Claim
21 words
The breast prosthesis defined in claim 1, wherein said cavity is provided with at least one channel which becomes progressively shallower.
Claim 5
Dependent Claim
23 words
The breast prosthesis defined in claim 3, wherein said at least one channel extends from said rim towards the apex of said cavity.
Claim 6
Dependent Claim
16 words
The breast prosthesis defined in claim 4 wherein said channel becomes progressively narrower approaching said apex.
Claim 7
Dependent Claim
15 words
The breast prosthesis defined in claim 1 wherein said rim is substantially flat and planar.
References Cited (Backward Citations)
US2066503A
Cited
FR1085676A
Cited
US2867818A
Cited
US3494365A
Cited
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Cited
US4019209A
Cited
US4086666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-10-29 | 1983-04-30 | 1983-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-29 | 1987-04-30 | 1987-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-29 | 1991-04-30 | 1991-10-30 | $7700.00 | Window Closed / Lapsed |