US2790059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistance soldering device and method
Assignee: ZEPHER Manufacturing CO
•
Filing: 1955-06-13
•
Granted: 1957-04-23
•
Expires: 1975-06-13
Abstract
No abstract record available.
Inventors
- 👤 Burnett Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:53
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/02; B23K3/03; B23K3/0307
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2636971A
Cited
US1037030A
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US2283158A
Cited
GB556835A
Cited
US2363714A
Cited
US2449521A
Cited
GB665317A
Cited
FR1083573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |