US2473686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite billet and manufacture thereof
Assignee: SUPERRIOR STEEL Corp
•
Filing: 1946-02-12
•
Granted: 1949-06-21
•
Expires: 1966-02-12
Abstract
No abstract record available.
Inventors
- 👤 Walter L Keene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:46
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/22; B23K20/227; B23K20/04; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12306; Y10T428/12313; Y10T428/12347; Y10T428/12354; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/12917; Y10T428/12924; Y10T428/12951; Y10T428/12958; Y10T428/12965; Y10T428/12972; Y10T428/12979
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1746987A
Cited
US1896411A
Cited
GB407942A
Cited
US1996721A
Cited
US2057254A
Cited
US2145248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |