US3418103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making tungsten and molybdenum alloys
Assignee: Duracell Inc USA
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Filing: 1964-12-11
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Granted: 1968-12-24
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Expires: 1984-12-11
Abstract
No abstract record available.
Inventors
- 👤 Lasdon Lloyd Ivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:52
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/10; C22C1/1026; C22C27/00; C22C27/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A METHOD OF PRODUCING AN ALLOY POWDER OF 5% NICKEL, 5% COPPER AND 90% REFRACTORY COMPRISING THE STEPS OF: INTRODUCING AN AQUEOUS SOLUTION OF NICKEL AND COPPER TO A DRY SALT OF SAID REFRACTORY; COATING REFRACTORY PARTICLES BY CONTINUOUS BLENDING AND EVAPORATION OF THE SOLUTION, SAID REFRACTORY SELECTED FROM THE GROUP CONSISTING OF TUNGSTEN AND MOLYBDENUM; AND THE STEP OF COREDUCTION TO THE ALLOY METAL POWDER BY USE OF HYDROGEN OR CARBON.
Claim 2
Independent Claim
72 words
A METHOD OF PRODUCING AN ALLOY POWDER OF 5% NICKEL, 5% COPPER AND 90% REFRACTORY COMPRISING THE STEPS OF: INTRODUCING AN AQUEOUS SOLUTION OF NICKEL AND COPPER TO A DRY SALT OF SAID REFRACTORY; COATING REFRACTORY PARTICLES BY CONTINUOUS BLENDING AND EVAPORATION OF THE SOLUTION, SAID REFRACTORY SELECTED FROM THE GROUP CONSISTING OF TUNGSTEN AND MOLYBDENUM; AND THE STEP OF COREDUCTION TO THE ALLOY METAL POWDER BY USE OF HYDROGEN OR CARBON.
References Cited (Backward Citations)
US1829635A
Cited
US2410717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |