US3059282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of casting employing an investment mold
Assignee: Esco Corp
•
Filing: 1959-05-29
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Granted: 1962-10-23
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Expires: 1979-05-29
Abstract
No abstract record available.
Inventors
- 👤 Dan L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:27
CPC Classifications
B; B22; B22C; B22C7/00; B22C7/02; Y; Y10; Y10S; Y10S164/00; Y10S164/02; Y10S264/00; Y10S264/44; Y10S425/00; Y10S425/029
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
IN A CASTING METHOD, THE STEPS OF FABRICATING A PATTERN OF A MATERIAL COMPRISING UREA, INVESTING THE SAID PATTERN WITH MOLD MATERIAL, SOLIDIFYING THE SAID MOLD MATERIAL, FLUIDIZING THE SAID PATTERN MATERIAL, AND REMOVING THE SAID PATTERN MATERIAL FROM THE SOLIDIFIED MOLD MATERIAL.
Claim 2
Dependent Claim
43 words
IN A CASTING METHOD, THE STEPS OF FABRICATING A PATTERN OF A MATERIAL COMPRISING UREA, INVESTING THE SAID PATTERN WITH MOLD MATERIAL, SOLIDIFYING THE SAID MOLD MATERIAL, FLUIDIZING THE SAID PATTERN MATERIAL, AND REMOVING THE SAID PATTERN MATERIAL FROM THE SOLIDIFIED MOLD MATERIAL.
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) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |