Patent US3304046A successfully refreshed from Google Patents.
US3304046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of ceramic objects and the like
Assignee: Harbison Walker Refractories Co
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Filing: 1966-05-31
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Granted: 1967-02-14
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Expires: 1986-05-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Eldon D Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:17
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/16; B28B7/18; B28B1/00; B28B1/26; B28B1/261
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
IN A MOISTURE-ABSORBENT MULTI-COMPONENT MOLD SUITABLE FOR CASTING COMPLEX CERAMIC AND REFRACTORY MATERIALS CONSISTING OF A BASE HAVING AN UPPER SURFACE AND SIDEWALLS RELEASABLY AFFIXED THERETO TO PROVIDE A CAVITY, A PLURALITY OF UNDIRECTIONAL, NONCIRCULAR MOLD COMPONENTS EXTENDING VERTICALLY FROM THE UPPER SURFACE OF THE BASE WITHIN THE CAVITY IN AN ACCURATE PATTERN, EACH OF SAID MOLD COMPONENTS BEING FRICTIONALLY ENGAGED WITH AND REMOVABLY SECURED TO THE BASE BY MEANS OF COMPLEMENTARY POLARIZING KEYING MEANS ATTACHED TO THE BASE AND MOLD COMPONENTS, ONE OF SAID KEYING MEANS BEING FLEXIBLE AND THE OTHER RIGID.
Claim 2
Dependent Claim
93 words
IN A MOISTURE-ABSORBENT MULTI-COMPONENT MOLD SUITABLE FOR CASTING COMPLEX CERAMIC AND REFRACTORY MATERIALS CONSISTING OF A BASE HAVING AN UPPER SURFACE AND SIDEWALLS RELEASABLY AFFIXED THERETO TO PROVIDE A CAVITY, A PLURALITY OF UNDIRECTIONAL, NONCIRCULAR MOLD COMPONENTS EXTENDING VERTICALLY FROM THE UPPER SURFACE OF THE BASE WITHIN THE CAVITY IN AN ACCURATE PATTERN, EACH OF SAID MOLD COMPONENTS BEING FRICTIONALLY ENGAGED WITH AND REMOVABLY SECURED TO THE BASE BY MEANS OF COMPLEMENTARY POLARIZING KEYING MEANS ATTACHED TO THE BASE AND MOLD COMPONENTS, ONE OF SAID KEYING MEANS BEING FLEXIBLE AND THE OTHER RIGID.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |