Patent US2683207A successfully refreshed from Google Patents.
US2683207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stranded welding rod
Assignee: JOHN A ROEBLING S SONS CORP
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Filing: 1951-07-21
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Granted: 1954-07-06
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Expires: 1971-07-21
Abstract
No abstract record available.
Inventors
- 👤 Lewis Dartrey
- 👤 Howard F Stirn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:36
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/02; B23K35/0255; B23K35/0261; B23K35/0283; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929
Claims Analysis
Total Claims: 0
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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) | 1957-07-05 | 1958-01-04 | 1958-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-05 | 1962-01-04 | 1962-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-05 | 1966-01-04 | 1966-07-06 | $7700.00 | Window Closed / Lapsed |