US3676088A
Expired / Lapsed
US
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Composite article
Assignee: Olin Corp
•
Filing: 1971-03-03
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Granted: 1972-07-11
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Expires: 1991-03-03
Abstract
Abstract THE DISCLOSURE TEACHES A COMPOSITE CUPROUS ARTICLE PARTICULARLY USEFUL AS A BRAZING SHEET. THE COMPOSITE HAS A CORE OF A COPPER BASE ALLOY HAVING A SOLIDS TEMPERATURE IN EXCESS OF 1900*F. CLAD WITH A DISSIMILAR COPPER BASE ALLOY CONTAINING FROM 22 TO 40% MANGANESE.
Inventors
- 👤 Michael J Pryor
- 👤 Stanley Shapiro
- 👤 Derek E Tyler
- 👤 John Shabarack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:28
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/302; C; C22; C22C; C22C9/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/1291
Claims Analysis
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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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |