US2830343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cavityless casting mold and method of making same
Assignee: Individual
•
Filing: 1956-04-26
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Granted: 1958-04-15
•
Expires: 1976-04-26
Abstract
No abstract record available.
Inventors
- 👤 Harold F Shroyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:49
CPC Classifications
B; B22; B22C; B22C9/00; B22C9/02; B22C9/04; B22C9/046; B22C7/00; B22C7/02; Y; Y10; Y10S; Y10S425/00; Y10S425/012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A METHOD OF CASTING, COMPRISING THE STEPS OF EMBEDDING IN A MOLD BODY A FORM COMBUSTIBLE SUBSTANTIALLY WITHOUT RESIDUE ON SUBJECTION TO A MOLTEN CASTING CHARGE AND SHAPED FOR EXACT REPRODUCTION AS A CASTING, PROVIDING IN SAID MOLD BODY A PASSAGE FOR A MOLTEN CASTING CHARGE TO SAID EMBEDDED FORM, AND POURING INTO SAID PASSAGE A MOLTEN CASTING CHARGE FOR BURNING THE REPLACING SAID EMBEDDED FORM IN SAID MOLD BODY.
Claim 2
Independent Claim
70 words
A METHOD OF CASTING, COMPRISING THE STEPS OF EMBEDDING IN A MOLD BODY A FORM COMBUSTIBLE SUBSTANTIALLY WITHOUT RESIDUE ON SUBJECTION TO A MOLTEN CASTING CHARGE AND SHAPED FOR EXACT REPRODUCTION AS A CASTING, PROVIDING IN SAID MOLD BODY A PASSAGE FOR A MOLTEN CASTING CHARGE TO SAID EMBEDDED FORM, AND POURING INTO SAID PASSAGE A MOLTEN CASTING CHARGE FOR BURNING THE REPLACING SAID EMBEDDED FORM IN SAID MOLD BODY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |