Patent US2159869A successfully refreshed from Google Patents.
US2159869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering iron
Assignee: American Electrical Heater Co
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Filing: 1936-06-22
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Granted: 1939-05-23
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Expires: 1956-06-22
Abstract
No abstract record available.
Inventors
- 👤 Laurence H Thomas
- 👤 Kuhn Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:31
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/02; B23K3/03; B23K3/033
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-05-22 | 1942-11-21 | 1943-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-05-22 | 1946-11-21 | 1947-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-05-22 | 1950-11-21 | 1951-05-23 | $7700.00 | Window Closed / Lapsed |