Patent US2206375A successfully refreshed from Google Patents.
US2206375A
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Method of welding copper and copper alloy clad steel
Assignee: American Brass Co
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Filing: 1938-05-12
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Granted: 1940-07-02
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Expires: 1958-05-12
Abstract
No abstract record available.
Inventors
- 👤 Clinton E Swift
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:13
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/02; B23K3/03; B23K3/0307; B23K5/00; B23K5/12; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/12917; Y10T428/12924; Y10T428/12951; Y10T428/12958
Claims Analysis
Total Claims: 0
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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) | 1943-07-02 | 1944-01-01 | 1944-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-07-02 | 1948-01-01 | 1948-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-07-02 | 1952-01-01 | 1952-07-02 | $7700.00 | Window Closed / Lapsed |