Patent US2974040A successfully refreshed from Google Patents.
US2974040A
Expired / Lapsed
US
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Process to produce void free refractory boride product
Assignee: Horizons Inc
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Filing: 1958-06-20
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Granted: 1961-03-07
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Expires: 1978-06-20
Abstract
No abstract record available.
Inventors
- 👤 Elwyn D Fisher
- 👤 Raymond H Baskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:39
CPC Classifications
C; C22; C22C; C22C29/00; C22C29/14; B; B22; B22F; B22F3/00; B22F3/10; B22F3/11; B22F3/24; B22F3/26; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/1216; Y10T428/12174
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A PROCESS FOR PRODUCING A PORE-FREE PRODUCT WHICH COMPRISES: FORMING AN INTIMATE MIXTURE CONSISTING ESSENTIALLY OF NICKEL, SILVER AND A REFRACTORY MATERIAL WHICH IS NOT WET BY SILVER AND WHICH IS SELECTED FROM THE GROUP CONSISTING OF BORIDES OF THE METALS W, MO, CR, V AND TI, COMPACTING THE MIXTURE OF REFRACTORY MATERIAL AND METALS TO FORM A COMPACT HAVING A DENSITY SOMEWHAT LESS THAN THE THEORETICAL DENSITY OF SAID MIXTURE, MAINTAINING THE COMPACT IN PHYSICAL CONTACT WITH ADDITIONAL SILVER AND SIMULTANEOUSLY THEREWITH HEATING THE ADDITIONAL SILVER AND COMPACTED MATERIAL TO A TEMPERATURE AND FOR AN INTERVAL AT LEAST SUFFICIENT FOR THE ADDITIONAL SILVER TO MELT AND TO IMPREGNATE THE COMPACT TO SUBSTANTIALLY THEORETICAL DENSITY, THE RELATIVE AMOUNTS OF SILVER BEING SUCH THAT AT LEAST 15% OF THE TOTAL SILVER IS PRESENT IN THE ORIDGINAL MIXTURE AND THE REMAINDER OF THE SILVER BEING AT LEAST SUFFICIENT TO COMPLETELY FILL THE VOIDS IN SAID COMPACT.
Claim 2
Dependent Claim
154 words
A PROCESS FOR PRODUCING A PORE-FREE PRODUCT WHICH COMPRISES: FORMING AN INTIMATE MIXTURE CONSISTING ESSENTIALLY OF NICKEL, SILVER AND A REFRACTORY MATERIAL WHICH IS NOT WET BY SILVER AND WHICH IS SELECTED FROM THE GROUP CONSISTING OF BORIDES OF THE METALS W, MO, CR, V AND TI, COMPACTING THE MIXTURE OF REFRACTORY MATERIAL AND METALS TO FORM A COMPACT HAVING A DENSITY SOMEWHAT LESS THAN THE THEORETICAL DENSITY OF SAID MIXTURE, MAINTAINING THE COMPACT IN PHYSICAL CONTACT WITH ADDITIONAL SILVER AND SIMULTANEOUSLY THEREWITH HEATING THE ADDITIONAL SILVER AND COMPACTED MATERIAL TO A TEMPERATURE AND FOR AN INTERVAL AT LEAST SUFFICIENT FOR THE ADDITIONAL SILVER TO MELT AND TO IMPREGNATE THE COMPACT TO SUBSTANTIALLY THEORETICAL DENSITY, THE RELATIVE AMOUNTS OF SILVER BEING SUCH THAT AT LEAST 15% OF THE TOTAL SILVER IS PRESENT IN THE ORIDGINAL MIXTURE AND THE REMAINDER OF THE SILVER BEING AT LEAST SUFFICIENT TO COMPLETELY FILL THE VOIDS IN SAID COMPACT.
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) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |