US2424779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ingot for and method of making composite articles
Assignee: Jessop Steel Co
•
Filing: 1945-04-16
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Granted: 1947-07-29
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Expires: 1965-04-16
Abstract
No abstract record available.
Inventors
- 👤 Leyshon W Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:57
CPC Classifications
B; B22; B22D; B22D7/00; B22D7/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/49792; Y10T428/00; Y10T428/12; Y10T428/12188; Y10T428/12382; Y10T428/12451; Y10T428/12486; Y10T428/12493; Y10T428/12986
Claims Analysis
Total Claims: 0
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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) | 1950-07-28 | 1951-01-27 | 1951-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-28 | 1955-01-27 | 1955-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-28 | 1959-01-27 | 1959-07-29 | $7700.00 | Window Closed / Lapsed |