Patent US2780712A successfully refreshed from Google Patents.
US2780712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering device
Assignee: Individual
•
Filing: 1955-02-16
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Granted: 1957-02-05
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Expires: 1975-02-16
Abstract
No abstract record available.
Inventors
- 👤 John F Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:00
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/06; B23K3/0607; B23K3/0615
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US672433A
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US1619817A
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US1819671A
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US1928576A
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US2025509A
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US2094795A
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GB585884A
Cited
US2423900A
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US2432009A
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US2449521A
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US2452360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |