Patent US2612459A successfully refreshed from Google Patents.
US2612459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering flux
Assignee: McCord Corp
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Filing: 1950-06-20
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Granted: 1952-09-30
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Expires: 1970-06-20
Abstract
No abstract record available.
Inventors
- 👤 Hobart H Willard
- 👤 William S Gale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:41
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612; B23K35/3615
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
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
Claim 2
Dependent Claim
161 words
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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) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |