US2850384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical resistance alloys
Assignee: Wilbur B Driver Co
•
Filing: 1956-09-26
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Granted: 1958-09-02
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Expires: 1976-09-26
Abstract
No abstract record available.
Inventors
- 👤 Starr Carrol Dean
- 👤 James E Daly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:55
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/02; C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/058
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
AN ELECTRICAL RESISTANCE ALLOY CONSISTING ESSENTIALLY OF FROM 2 TO 4.5% OF A1, 2 TO 8% OF V AND 15 TO 25% OF CR IN A NI BASE.
Claim 2
Dependent Claim
28 words
AN ELECTRICAL RESISTANCE ALLOY CONSISTING ESSENTIALLY OF FROM 2 TO 4.5% OF A1, 2 TO 8% OF V AND 15 TO 25% OF CR IN A NI BASE.
References Cited (Backward Citations)
US1803468A
Cited
US2460590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |