US2464821A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing a surface for soldering by coating with indium
Assignee: Indium Corp of America Inc
•
Filing: 1942-08-03
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Granted: 1949-03-22
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Expires: 1962-08-03
Abstract
No abstract record available.
Inventors
- 👤 Maria T Ludwick
- 👤 William S Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:57
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/26; B23K35/268; B23K35/001; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12681
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1684565A
Cited
US1727259A
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US1960740A
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US1934730A
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US2288654A
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US2123384A
Cited
US2157933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-21 | 1952-09-20 | 1953-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-21 | 1956-09-20 | 1957-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-21 | 1960-09-20 | 1961-03-22 | $7700.00 | Window Closed / Lapsed |