US3106756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light weight ingot casting mold hot tops and covers
Assignee: Quigley Co Inc
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Filing: 1960-12-21
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Granted: 1963-10-15
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Expires: 1980-12-21
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Demaison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:24
CPC Classifications
B; B22; B22D; B22D7/00; B22D7/06; B22D7/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A LIGHT WEIGHT HIGHLY POROUS HOT TOP FOR USE WITH AN INGOT CASING MOLD, SAID HOT TOP COMPRISING A HOLLOW BODY OPEN AT THE TOP AND BOTTOM, THE WALL STRUCTURE OF SAID BODY BEING COMPOSED ESSENTIALLY OF FINELY SPUN HIGH TEMPERATUE REFRACTORY MINERAL WOOL FIBERS BONDED TOGETHER INTO AN INTEGRATED MASS HAVING A WEIGHT OF FORM 4 TO 10 POUNDS PER CUBIC FOOT AND CONSONANT WITH A PREDETERMINED LOW VOLUME SINK HEAD.
Claim 2
Dependent Claim
72 words
A LIGHT WEIGHT HIGHLY POROUS HOT TOP FOR USE WITH AN INGOT CASING MOLD, SAID HOT TOP COMPRISING A HOLLOW BODY OPEN AT THE TOP AND BOTTOM, THE WALL STRUCTURE OF SAID BODY BEING COMPOSED ESSENTIALLY OF FINELY SPUN HIGH TEMPERATUE REFRACTORY MINERAL WOOL FIBERS BONDED TOGETHER INTO AN INTEGRATED MASS HAVING A WEIGHT OF FORM 4 TO 10 POUNDS PER CUBIC FOOT AND CONSONANT WITH A PREDETERMINED LOW VOLUME SINK HEAD.
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) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |