Patent US2781579A successfully refreshed from Google Patents.
US2781579A
Expired / Lapsed
US
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Dental prosthetic device
Assignee: Baker and Co Inc
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Filing: 1955-06-08
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Granted: 1957-02-19
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Expires: 1975-06-08
Abstract
No abstract record available.
Inventors
- 👤 Edward O Liebig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:25
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/225; A61C13/275
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A DENTAL PROSTHETIC DEVICE COMPRISING A PORCELAIN MEMBER BONDED TO A METAL SUPPORT CONSISTING OF AN ALLOY OF FROM 50%-80% GOLD, 10%-40% PLATINUM, 0%-15% PALLADIUM, 1%-10% COPPER, AND 1%-10% RHODIUM.
Claim 2
Dependent Claim
30 words
A DENTAL PROSTHETIC DEVICE COMPRISING A PORCELAIN MEMBER BONDED TO A METAL SUPPORT CONSISTING OF AN ALLOY OF FROM 50%-80% GOLD, 10%-40% PLATINUM, 0%-15% PALLADIUM, 1%-10% COPPER, AND 1%-10% RHODIUM.
References Cited (Backward Citations)
US2572377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-19 | 1960-08-20 | 1961-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-19 | 1964-08-20 | 1965-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-19 | 1968-08-20 | 1969-02-19 | $7700.00 | Window Closed / Lapsed |