US3299687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallurgy
Assignee: National Research Corp
•
Filing: 1964-09-15
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Granted: 1967-01-24
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Expires: 1984-09-15
Abstract
No abstract record available.
Inventors
- 👤 Jr George D Kneip
- 👤 William F Spain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:06
CPC Classifications
C; C22; C22C; C22C27/00; C22C27/02; H; H10; H10N; H10N60/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A METHOD OF COLD DRAWING WIRE OF AN ALLOY COMPRISING, BY WEIGHT, FROM ABOUT 25 TO 33% ZIRCONIUM, THE SUM TOTAL OF OXYGEN, NITROGEN, CARBON AND HYDROGEN RANGING BETWEEN ABOUT 0.03 AND 0.05%, AT LEAT 50% OF SAID SUM TOTAL BEING OXYGEN, AND THE BALANCE NIOBIUM, SAID WIRE HAVING A DIAMETER OF BETWEEN ABOUT 150 AND 350 MILS, WHICH COMPRISES COLD DRAWING SAID ALLOY WIRE THROUGH A PLURALITY OF DIES TO REDUCE THE DIAMETER THEREOF TO BETWEEN ABOUT 70 AND 115 MILS, THE AREA OF SAID WIRE ON PASSING THROUGH EACH OF SAID DIES BEING REDUCED BETWEEN ABOUT 15 AND 19%, AND THEREAFTER COLD DRAWING SAID ALLOY WIRE THROUGH ANOTHER PLURALITY OF DIES TO REDUCE THE DIAMETER THEREOF BELOW 15 MILS, THE REDUCTION TAKEN IN THE AREA OF SAID ALLOY WIRE ON PASSING THROUGH THESE DIES BEING GRADUALLY DECREASED TO BETWEEN ABOUT 5 AND 9%.
Claim 2
Independent Claim
145 words
A METHOD OF COLD DRAWING WIRE OF AN ALLOY COMPRISING, BY WEIGHT, FROM ABOUT 25 TO 33% ZIRCONIUM, THE SUM TOTAL OF OXYGEN, NITROGEN, CARBON AND HYDROGEN RANGING BETWEEN ABOUT 0.03 AND 0.05%, AT LEAT 50% OF SAID SUM TOTAL BEING OXYGEN, AND THE BALANCE NIOBIUM, SAID WIRE HAVING A DIAMETER OF BETWEEN ABOUT 150 AND 350 MILS, WHICH COMPRISES COLD DRAWING SAID ALLOY WIRE THROUGH A PLURALITY OF DIES TO REDUCE THE DIAMETER THEREOF TO BETWEEN ABOUT 70 AND 115 MILS, THE AREA OF SAID WIRE ON PASSING THROUGH EACH OF SAID DIES BEING REDUCED BETWEEN ABOUT 15 AND 19%, AND THEREAFTER COLD DRAWING SAID ALLOY WIRE THROUGH ANOTHER PLURALITY OF DIES TO REDUCE THE DIAMETER THEREOF BELOW 15 MILS, THE REDUCTION TAKEN IN THE AREA OF SAID ALLOY WIRE ON PASSING THROUGH THESE DIES BEING GRADUALLY DECREASED TO BETWEEN ABOUT 5 AND 9%.
References Cited (Backward Citations)
No citation records indexed.
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 |