Patent US2759231A successfully refreshed from Google Patents.
US2759231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anodized metal molds
Assignee: Individual
•
Filing: 1951-05-09
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Granted: 1956-08-21
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Expires: 1971-05-09
Abstract
No abstract record available.
Inventors
- 👤 Parlanti Conrad Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:04
CPC Classifications
B; B22; B22C; B22C9/00; B22C9/06; B22C9/061; B22C9/08; B22C9/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
FOR USE IN CASTING METALS, AN ALUMINUM MOLD HAVING A CASTING CAVITY AND A FEED CAVITY THEREIN, SAID FEED CAVITY HAVING AN EXIT APERTURE OPENING INTO AN ENTRANCE APERTURE TO SAID CASTING CAVITY, THE INTERIOR AND EXTERIOR SURFACES OF SAID MOLD BEING ANODIZED, THE RATIO OF THE VOLUME OF SAID FEED CAVITY TO THE VOLUME OF SAID CASTING CAVITY BEING IN EXCESS OF 1:1, AND THE CROSS SECTIONAL AREA OF THE CASTING CAVITY AT THE EXIT APERTURE FROM THE FEED CAVITY BEING NO LARGE THAN THE AREA OF SAID EXIT APERTURE.
Claim 2
Dependent Claim
91 words
FOR USE IN CASTING METALS, AN ALUMINUM MOLD HAVING A CASTING CAVITY AND A FEED CAVITY THEREIN, SAID FEED CAVITY HAVING AN EXIT APERTURE OPENING INTO AN ENTRANCE APERTURE TO SAID CASTING CAVITY, THE INTERIOR AND EXTERIOR SURFACES OF SAID MOLD BEING ANODIZED, THE RATIO OF THE VOLUME OF SAID FEED CAVITY TO THE VOLUME OF SAID CASTING CAVITY BEING IN EXCESS OF 1:1, AND THE CROSS SECTIONAL AREA OF THE CASTING CAVITY AT THE EXIT APERTURE FROM THE FEED CAVITY BEING NO LARGE THAN THE AREA OF SAID EXIT APERTURE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |