US3591370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental alloy
Assignee: Amalgamated Dental Co Ltd
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Filing: 1968-10-04
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Granted: 1971-07-06
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Expires: 1988-10-04
Abstract
Abstract A NEW DENTAL ALLOY COMPRISES SILVER, TIN, COPPER, NICKEL AND INDIUM, SUITABLY 65 TO 75% BY WEIGHT OF SILVER, 23 TO 29% BY WEIGHT OF TIN, UP TO 6% BY WEIGHT OF COPPER, 0.1 TO 2% BY WEIGHT OF NICKEL AND 0.1 TO 2% BY WEIGHT OF INDIUM. THE ALLOY MAY CONTAIN MERCURY IN AN AMOUNT OF UP TO 3% BY WEIGHT.
Inventors
- 👤 Andre Denereaz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:14
CPC Classifications
C; C22; C22C; C22C5/00; A; A61; A61K; A61K6/00; A61K6/80; A61K6/84; A61K6/847
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |