US2726436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal-clad aluminum alloys
Assignee: British Aluminum Co Ltd
•
Filing: 1951-08-07
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Granted: 1955-12-13
•
Expires: 1971-08-07
Abstract
No abstract record available.
Inventors
- 👤 Champion Frederick Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:03
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B32B15/016; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/933; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/12764
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1865089A
Cited
US1873470A
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US2084327A
Cited
US1997165A
Cited
US1997166A
Cited
US2100411A
Cited
US2240732A
Cited
US2312039A
Cited
US2376681A
Cited
US2586647A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-12 | 1959-06-13 | 1959-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-12 | 1963-06-13 | 1963-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-12 | 1967-06-13 | 1967-12-13 | $7700.00 | Window Closed / Lapsed |