US2600995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tungsten alloy
Assignee: GTE Sylvania Inc
•
Filing: 1945-10-30
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Granted: 1952-06-17
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Expires: 1965-10-30
Abstract
No abstract record available.
Inventors
- 👤 Kurtz Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:45
CPC Classifications
C; C22; C22C; C22C27/00; C22C27/04; Y; Y10; Y10S; Y10S75/00; Y10S75/95
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
54 words
A DENSE COHERENT TUNGENT ALLOY CONSISTING OF 84% TO 90% TUNGENT, 1% TO 10% COPPER-SILVER, 1% TO 5% COBALT AND .1 TO 1% OF PLATINUM, THE ALLOY SO FORMED HAVING A DENSITY APPROXIMATING 17 GRAMS PER CUBIC CENTIMETER AND A GRAIN COUNT OF NOT LESS THAN 2000 GRAINS PER SQUARE MILLIMETER AND GOOD MACHINABILITY.
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Cited
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Cited
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US2389060A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |