US3026199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal alloy
Assignee: Sierra Metals Corp
•
Filing: 1958-07-28
•
Granted: 1962-03-20
•
Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Rudolf H Thielemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:23
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/07
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
179 words
A METAL ALLOY CONSISTING ESSENTIALLY OF BY WEIGHT: FROM ABOUT 15 TO ABOUT 30 PERCENT OF CHRONIUM; FROM ABOUT 5 TO ABOUT 15 PERCENT OF TUNGSTEN; UP TO ABOUT 0.2 PERCENT OF BORON; FROM ABOUT 0.5 TO ABOUT 5 PERCENT OF COLUMBIUM; TANTALUM IN AN AMOUNT SUCH THAT IF THE COLUMBIUM IS PERCENT IN THE ALLOY IN AN AMOUNT OF MORE THAN 3 PERCENT THEN THE COMBINED AMOUNT OF COLUMBIUM AND TANTALUM IN THE ALLOY IS LESS THAN OR EQUAL TO 20 PERCENT OF THE ALLOY; AND IF THE COLUMBIUM IS IN AN AMOUNT OF EQUAL TO OR LESS THAN 3 PERCENT, THE TANTALUM SHOULD NOT EXCEED TWICE THE AMOUNT OF COLUMBIUM IN THE ALLOY; UP TO 3.5 PERCENT OF MOLYBDENUM, BUT NOT MORE THAN ABOUT 50 PERCENT OF THE AMOUNG OF TUNGSTEN IN THE ALLOY; FROM ABOUT 0.01 TO ABOUT 3 PERCENT OF ZIRCONIUM; FROM ABOUT 0.1 TO ABOUT 1.3 PERCENT OF CARBON; UP TO ABOUT 1.5 PERCENT OF SILICON; UP TO ABOUT 5 PERCENT OF NICKEL; UP TO ABOUT 5 PERCENT OF IRON; AND THE BALANCE COBALT.
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) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |