US3607242A
Expired / Lapsed
US
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Electrical resistance alloy
Assignee: Carpenter Technology Corp
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Filing: 1969-05-22
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Granted: 1971-09-21
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Expires: 1989-05-22
Abstract
Abstract An electrical alloy which is essentially free of cobalt and carbon and comprising, as expressed in percent by weight: NICKEL: 40-46%; MANGANESE: 2.5-3.5%; IRON: 0.5-0.6% COPPER-BALANCE
Inventors
- 👤 Arnold J Gottlieb
- 👤 Teh Po Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:31
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/02; H01B1/026; C; C22; C22C; C22C9/00; C22C9/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
14 words
An alloy as set forth in claim 1 wherein the carbon content 0.005 percent.
Claim 2
Dependent Claim
14 words
An alloy as set forth in claim 2 wherein the cobalt content 0.03 percent.
Claim 3
Dependent Claim
16 words
An alloy as set forth in claim 3 containing: 43% nickel; 3% manganese; 0.25% iron; balance-copper
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |