US3204917A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Layered mold
Assignee: OI Glass Inc
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Filing: 1960-12-16
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Granted: 1965-09-07
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Expires: 1980-12-16
Abstract
No abstract record available.
Inventors
- 👤 Ray S Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:35
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; C; C03; C03B; C03B9/00; C03B9/30; C03B9/48; C23; C23C; C23C4/00; C23C4/04; C23C4/06; C23C4/08; C23C4/18; C23C4/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A MOLD COMPRISING AN INNTER LAYER FORMED OF A RELATIVELY HARD, WEAR-RESISTANT METALLIC ALLOY HAVING OXIDATION RESISTANCE AT ELEVATED TEMPERATURES, AN OUTER LAYER FORMED OF A METALLIC MATERIAL HAVING RELATIVELY HIGH THERMAL CONDUCTIVITY, AND AT LEAST ONE INTERMEDIATE LAYER DISPOSED ADJACENT TO SAID INNTER LAYER, SAID INTERMEDIATE LAYER COMPRISING A METALLIC MATERIAL HAVING A MELTING POINT SUBSTANTIALLY HIGHER THAN THE MELTING POINT OF SAID INNER LAYER, SAID INNTER AND INTERMEDIATE LAYERS BEING ALLOYED TOGETHER AT THEIR INTERFACE TO FORM A METALLURGICAL BOND.
Claim 2
Dependent Claim
82 words
A MOLD COMPRISING AN INNTER LAYER FORMED OF A RELATIVELY HARD, WEAR-RESISTANT METALLIC ALLOY HAVING OXIDATION RESISTANCE AT ELEVATED TEMPERATURES, AN OUTER LAYER FORMED OF A METALLIC MATERIAL HAVING RELATIVELY HIGH THERMAL CONDUCTIVITY, AND AT LEAST ONE INTERMEDIATE LAYER DISPOSED ADJACENT TO SAID INNTER LAYER, SAID INTERMEDIATE LAYER COMPRISING A METALLIC MATERIAL HAVING A MELTING POINT SUBSTANTIALLY HIGHER THAN THE MELTING POINT OF SAID INNER LAYER, SAID INNTER AND INTERMEDIATE LAYERS BEING ALLOYED TOGETHER AT THEIR INTERFACE TO FORM A METALLURGICAL BOND.
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |