US3643658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implants of titanium or a titanium alloy for the surgical treatment of bones
Assignee: Institut Straumann AG
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Filing: 1969-08-27
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Granted: 1972-02-22
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Expires: 1989-08-27
Abstract
Abstract A titanium or titanium implant with the novel feature of the surface layer formed as an oxide, nitride, carbide and carbonitride. The surface layer is applied to prevent abrasion and corrosion of the implant and to prevent fretting between contacting implants as well as to improve the appearance thereof.
Inventors
- 👤 Samuel Steinemenan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:01
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; Y; Y10; Y10S; Y10S606/00; Y10S606/907
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
19 words
An implant as defined in claim 1, wherein said surface layer having a thickness greater than 0.1 Mu .
References Cited (Backward Citations)
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US3346469A
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US3408236A
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US3338805A
Cited
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Cited
US3466669A
Cited
US3508954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |