Patent US3300285A successfully refreshed from Google Patents.
US3300285A
Expired / Lapsed
US
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Powder-metallurgical tungsten-base alloy and methods of making same
Assignee: General Electric Co
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Filing: 1964-12-21
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Granted: 1967-01-24
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Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 John W Pugh
- 👤 Lutli H Amra
- 👤 Dallas T Hurd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:23
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/04; C22C1/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A POWDER-METALLURGICAL, SINTERED, TUNGSTEN-BASE ALLOY CONSISTING ESSENTIALLY OF, BY WEIGHT, FROM A SMALL BUT EFFECITVE AMOUNT TO ENHANCE SINTERING TO ABOUT 5% MANGANESE, FROM ZERO TO ABOUT 0.3% SULFUR, FROM ZERO TO ABOUT 0.2% YTTRIUM, AND FROM ZERO TO A SMALL BUT EFFECTIVE AMOUNT OF ADDITIVES TO PROMOTE GRAIN GROWTH, THE BALANCE TUNGSTEN AND INCIDENTAL IMPURITIES.
Claim 2
Dependent Claim
56 words
A POWDER-METALLURGICAL, SINTERED, TUNGSTEN-BASE ALLOY CONSISTING ESSENTIALLY OF, BY WEIGHT, FROM A SMALL BUT EFFECITVE AMOUNT TO ENHANCE SINTERING TO ABOUT 5% MANGANESE, FROM ZERO TO ABOUT 0.3% SULFUR, FROM ZERO TO ABOUT 0.2% YTTRIUM, AND FROM ZERO TO A SMALL BUT EFFECTIVE AMOUNT OF ADDITIVES TO PROMOTE GRAIN GROWTH, THE BALANCE TUNGSTEN AND INCIDENTAL IMPURITIES.
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |