Patent US3216074A successfully refreshed from Google Patents.
US3216074A
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Method for making shaped foundry articles
Assignee: Individual
•
Filing: 1964-02-26
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Granted: 1965-11-09
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Expires: 1984-02-26
Abstract
No abstract record available.
Inventors
- 👤 Edward N Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:48
CPC Classifications
B; B22; B22C; B22C7/00; B22C7/06; B22C9/00; Y; Y10; Y10S; Y10S425/00; Y10S425/033
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A METHOD OF MAKING A SHAPED FOUNDRY ARTICLE COMPRISING: (A) DEPOSITING MAGNETIC SHOT UPON A SUPPORTING SURFACE, (B) MAGNETIZING SAID SHOT TO FORM A WORKABLE COHERENT MASS HAVING AN EXPOSED SURFACE, (C) THEN FORCING A TOOL INTO SAID EXPOSED SURFACE TO FORM A PREDETERMINED DESIGN, AND (D) IMPREGNATING SAID EXPOSED SURFACE WITH A GRANULAR BONDING MATERIAL AND (E) SETTING SAID BONDING MATERIAL TO FORM A SMOOTH AND RIGID EXPOSED SURFACE INCORPORATING SAID PREDETERMINED DESIGN.
Claim 2
Independent Claim
74 words
A METHOD OF MAKING A SHAPED FOUNDRY ARTICLE COMPRISING: (A) DEPOSITING MAGNETIC SHOT UPON A SUPPORTING SURFACE, (B) MAGNETIZING SAID SHOT TO FORM A WORKABLE COHERENT MASS HAVING AN EXPOSED SURFACE, (C) THEN FORCING A TOOL INTO SAID EXPOSED SURFACE TO FORM A PREDETERMINED DESIGN, AND (D) IMPREGNATING SAID EXPOSED SURFACE WITH A GRANULAR BONDING MATERIAL AND (E) SETTING SAID BONDING MATERIAL TO FORM A SMOOTH AND RIGID EXPOSED SURFACE INCORPORATING SAID PREDETERMINED DESIGN.
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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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |