US3606615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tooth prostheses and surgical implants
Assignee: Fried Krupp AG
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Filing: 1970-04-21
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Granted: 1971-09-21
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Expires: 1990-04-21
Abstract
Abstract An alloy for making tooth prostheses and surgical implants. This alloy consists essentially of 5 to 15 percent chromium, 5 to 15 percent nickel, 4 t 11 percent titanium, and remainder cobalt.
Inventors
- 👤 Otto Rudiger
- 👤 Alfred Hoffmann
- 👤 Dieter Hirschfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:40
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0012; A61L; A61L27/00; A61L27/02; A61L27/04; A61L27/045; A61F; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00029
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |