Patent US3936887A successfully refreshed from Google Patents.
US3936887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial implant and method of making same
Assignee: Individual
•
Filing: 1973-12-10
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Granted: 1976-02-10
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Expires: 1993-12-10
Abstract
Abstract An artificial implant comprising as its essential ingredients vitreous carbon and an acrylic polymer having substantially the characteristics of polymethylmethacrylate, and the method for making same.
Inventors
- 👤 Milton Hodosh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:01
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0012; A61C8/0016; A61L; A61L27/00; A61L27/40; A61L27/44; A61L27/443
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
37 words
An artificial implant comprising a composition consisting essentially of vitreous carbon and polymethylmethacrylate, said vitreous carbon comprising between 1/4 of 1% and 50% of the composition by weight, said vitreous carbon being in the form of microballoons.
Claim 2
Dependent Claim
37 words
An artificial implant comprising a composition consisting essentially of vitreous carbon and polymethylmethacrylate, said vitreous carbon comprising between 1/4 of 1% and 50% of the composition by weight, said vitreous carbon being in the form of microballoons.
Claim 3
Dependent Claim
17 words
In the implant of claim 1, said vitreous carbon comprising approximately 3% by weight of the composition.
Claim 4
Dependent Claim
24 words
The implant of claim 1 further characterized in that the outer skin of said implant has been removed, whereby the outermost microballoons are bursted.
Claim 5
Dependent Claim
24 words
The implaint of claim 2 further characterized in that the outer skin of said implant has been removed, whereby the outermost microballoons are bursted.
Claim 6
Dependent Claim
29 words
An artificial implant comprising a composition consisting essentially of powdered vitreous carbon and polymethylmethacrylate, said vitreous carbon comprising between 1/4 of 1% and 50% of the composition by weight.
Claim 7
Dependent Claim
29 words
An artificial implant comprising a composition consisting essentially of powdered vitreous carbon and polymethylmethacrylate, said vitreous carbon comprising between 1/4 of 1% and 50% of the composition by weight.
Claim 8
Dependent Claim
17 words
In the implaint of claim 5, said vitreous carbon comprising approximately 3% by weight of the composition.
References Cited (Backward Citations)
US2480821A
Cited
US3786134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-09 | 1979-08-11 | 1980-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-09 | 1983-08-11 | 1984-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-09 | 1987-08-11 | 1988-02-10 | $7700.00 | Window Closed / Lapsed |