Patent US2671845A successfully refreshed from Google Patents.
US2671845A
Expired / Lapsed
US
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Rapidly heating electric soldering tool
Assignee: Individual
•
Filing: 1950-04-18
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Granted: 1954-03-09
•
Expires: 1970-04-18
Abstract
No abstract record available.
Inventors
- 👤 Benjamin J Chromy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:07
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/02; B23K3/03; B23K3/0315; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US958753A
Cited
DE389309C
Cited
US1684143A
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US1857215A
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US1897604A
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FR787065A
Cited
FR838748A
Cited
US2372645A
Cited
US2405866A
Cited
GB628968A
Cited
US2570762A
Cited
US2560552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-08 | 1957-09-07 | 1958-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-08 | 1961-09-07 | 1962-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-08 | 1965-09-07 | 1966-03-09 | $7700.00 | Window Closed / Lapsed |