US3647424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machinable alloys
Assignee: WILBER B DRIVER CO
•
Filing: 1969-11-03
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Granted: 1972-03-07
•
Expires: 1989-11-03
Abstract
Abstract A freely machinable alloy comprising, as expressed in percent by weight: Nickel 25%- 32%; Cobalt 6.5%-27%; Selenium 0.1%- 0.4%; Manganese 0.5%- 1.5%; Iron
Inventors
- 👤 George A Majesko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:36
CPC Classifications
C; C22; C22C; C22C19/00; C22C38/00; C22C38/10; C22C38/105
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
22 words
An alloy as set forth in claim 1 comprising 25 percent to 29 percent nickel and 23 percent to 27 percent cobalt.
Claim 2
Dependent Claim
22 words
An alloy as set forth in claim 1 comprising 28 percent to 30 percent nickel and 16 percent to 18 percent cobalt.
Claim 3
Dependent Claim
22 words
An alloy as set forth in claim 1 comprising 30.75 percent to 31.75 percent nickel and 6.5 percent to 8.5 percent cobalt.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |