US3114948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Investment casting apparatus and method
Assignee: Atlantic Casting and Engineering Corp
•
Filing: 1960-08-19
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Granted: 1963-12-24
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Expires: 1980-08-19
Abstract
No abstract record available.
Inventors
- 👤 Alfred P Poe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:29
CPC Classifications
B; B22; B22C; B22C9/00; B22C9/02; B22C9/04; B22C7/00; B22C7/02; B22D; B22D25/00; B22D25/02; B22D25/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN THE PREPARATION OF A PRECISION CASTING MOLD, THE METHOD OF FORMING AN EXPENDABLE MOLDING SHAPE WHICH COMPRISES, PROVIDING A PATTERN SUPPORT OF SUBSTANTIALLY PLANAR CONFIGURATION OF EXPENDABLE MATERIAL HAVING ASSOCIATED THEREWITH AN OUTLINE OF A TREE SIMULATING A RUNNER AND GATE SYSTEM CONFORMING SUBSTANTIALLY TO THE PLANE OF THE SUPPORT, PROVIDING A PLURALITY OF EXPENDABLE PRECISION MOLDED PATTERNS OF THE DESIRED SHAPE EACH HAVING A GATE STEM, AND MOUNTING EACH OF THE PATTERNS IN SPATIAL RELATIONSHIP IN CONFORMANCE WITH THE RUNNER AND GATE SYSTEM AT THE TERMINUS OF EACH STEM, THE POINTS OF CONTACT BETWEEN THE STEMS AND THE PATTERN SUPPORT BEING SUBSTANTIALLY IN THE SAME PLANE.
Claim 2
Dependent Claim
108 words
IN THE PREPARATION OF A PRECISION CASTING MOLD, THE METHOD OF FORMING AN EXPENDABLE MOLDING SHAPE WHICH COMPRISES, PROVIDING A PATTERN SUPPORT OF SUBSTANTIALLY PLANAR CONFIGURATION OF EXPENDABLE MATERIAL HAVING ASSOCIATED THEREWITH AN OUTLINE OF A TREE SIMULATING A RUNNER AND GATE SYSTEM CONFORMING SUBSTANTIALLY TO THE PLANE OF THE SUPPORT, PROVIDING A PLURALITY OF EXPENDABLE PRECISION MOLDED PATTERNS OF THE DESIRED SHAPE EACH HAVING A GATE STEM, AND MOUNTING EACH OF THE PATTERNS IN SPATIAL RELATIONSHIP IN CONFORMANCE WITH THE RUNNER AND GATE SYSTEM AT THE TERMINUS OF EACH STEM, THE POINTS OF CONTACT BETWEEN THE STEMS AND THE PATTERN SUPPORT BEING SUBSTANTIALLY IN THE SAME PLANE.
References Cited (Backward Citations)
US1349829A
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US1626224A
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US1752040A
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US1744571A
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US2201131A
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US2362507A
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US2394394A
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US2797458A
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US2830343A
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US2908951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |