Patent US2600995A successfully refreshed from Google Patents.
US2600995A
Expired / Lapsed
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Tungsten alloy
Assignee: GTE Sylvania Inc
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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 13:23
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.
References Cited (Backward Citations)
US1807581A
Cited
US1167827A
Cited
US1346192A
Cited
US1447797A
Cited
US1822682A
Cited
US2030229A
Cited
US2072368A
Cited
GB447567A
Cited
US2183359A
Cited
US2370242A
Cited
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 |