US2445431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering with resin fluxes
Assignee: Westinghouse Electric Corp
•
Filing: 1943-08-26
•
Granted: 1948-07-20
•
Expires: 1963-08-26
Abstract
No abstract record available.
Inventors
- 👤 Lawrence R Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:31
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612; B23K35/3613; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49174; Y10T29/49179; Y10T29/49204; Y10T29/49208; Y10T29/4921; Y10T29/49211; Y10T29/49213
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1847783A
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GB494906A
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US2250940A
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US2317811A
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US2342357A
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US2383589A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-20 | 1952-01-19 | 1952-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-20 | 1956-01-19 | 1956-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-20 | 1960-01-19 | 1960-07-20 | $7700.00 | Window Closed / Lapsed |