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US3423203A
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Tungsten-indium powder bodies infiltrated with copper
Assignee: Duracell Inc USA
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Filing: 1967-08-21
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Granted: 1969-01-21
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Expires: 1987-08-21
Abstract
No abstract record available.
Inventors
- 👤 Edward J Zdanuk
- 👤 Richard H Krock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:47
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/02; H01H1/0203; C; C22; C22C; C22C21/00; C22C21/02; C22C27/00; C22C27/04; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/1216; Y10T428/12174
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2596454A
Cited
US3303559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |