US2474643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of brazing cemented carbides to steel
Assignee: Carboloy Co Inc
•
Filing: 1947-06-04
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Granted: 1949-06-28
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Expires: 1967-06-04
Abstract
No abstract record available.
Inventors
- 👤 Clarence D Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:31
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3006; B23K31/00; B23K31/02; B23K31/025; Y; Y10; Y10T; Y10T407/00; Y10T407/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1887373A
Cited
GB345171A
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US1964972A
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US1951856A
Cited
FR713475A
Cited
US1903077A
Cited
US1956233A
Cited
US2232176A
Cited
US2124438A
Cited
US2384204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |