Patent US4579240A successfully refreshed from Google Patents.
Patent US4737539A successfully refreshed from Google Patents.
Patent US3093873A successfully refreshed from Google Patents.
US3093873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding method and apparatus
Assignee: JOHNSON CITY FOUNDRY AND MACHINE WORKS Inc
•
Filing: 1961-01-31
•
Granted: 1963-06-18
•
Expires: 1981-01-31
Abstract
No abstract record available.
Inventors
- 👤 Charles R Mcfall
- 👤 Vernon M Eads
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:15
CPC Classifications
B; B22; B22C; B22C21/00; B22C21/12; B22C21/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
AN APPARATUS FOR MAKING A HOLLOW ARTICLE COMPRISING A MOLD INCLUDING A DRAG AND A COPE COOPERATIVELY FORMING AN ARTICLE-DEFINING CAVITY, A MOLD CORE WITHIN SAID CAVITY DEFINING THE HOLLOW OF SAID ARTICLE, SAID MOLD BEING MOVABLE TO ROTATE SAID CORE BETWEEN GENERALLY HORIZONTAL AND UPRIGHT POSITIONS, A CHAPLET FIXING ONE END OF SAID CORE WITH RESPECT TO SAID COPE AND DRAG WHILE SAID CORE IS GENERALLY HORIZONTAL, FLANGE MEANS AT THE OTHER END OF SAID CORE ENGAGEABLE WITH SAID COPE AND DRAG TO FIX SAID CORE AGAINST DISPLACEMENT WITH RESPECT TO SAID COPE AND DRAG WHEN THEY ARE ASSEMBLED AND SAID CORE IS UPRIGHT, A FIRST PASSAGE CONNECTING SAID CAVITY AND THE EXTERIOR OF
References Cited (Backward Citations)
US1657444A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |