US2497098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for casting molten metal
Assignee: Monarch Aluminum Mfg Co
•
Filing: 1946-07-03
•
Granted: 1950-02-14
•
Expires: 1966-07-03
Abstract
No abstract record available.
Inventors
- 👤 Gottlieb E Schmid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:04
CPC Classifications
B; B22; B22D; B22D17/00; B22D17/08; B22D17/12; B22D17/20; B22D17/22; B22D17/2236
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
IN APPARATUS OF THE CLASS DESCRIBED, A MOLD COMPRISING AT LEAST TWO PARTS THAT MAY BE SEPARATED TO OPEN THE MOLD AND PERMIT REMOVAL OF A CASTING FROM A MOLD CAVITY, MEANS FORMING A PASSAGE COMMUNICATING WITH THE MOLD CAVITY TO INTRODUCE AN EXTRANEOUS FLUID PRESSURE BETWEEN THE CASTING AND A SURFACE OF THE MOLD TO WHICH IT MAY CLING TO SEPARATE THE SAME, A CYLINDER ALIGNED WITH SAID PASSAGE, A PISTON IN SAID CYLINDER, A PISTON ROD TERMINATING IN A SHIFTABLE PLUNGER ADAPTED TO SLIDE WITHIN SAID PASSAGE TO
References Cited (Backward Citations)
US2018568A
Cited
US2023002A
Cited
US2173377A
Cited
US2094079A
Cited
US2214347A
Cited
US2253651A
Cited
US2301819A
Cited
US2356634A
Cited
US2449280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |