US2429186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for welding
Assignee: PROGRESSIVE WELDER Co
•
Filing: 1943-04-03
•
Granted: 1947-10-14
•
Expires: 1963-04-03
Abstract
No abstract record available.
Inventors
- 👤 Fred H Johnson
- 👤 Chester F Leathers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:16
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/248
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2202205A
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US2113220A
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US2175920A
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US2166305A
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US2275948A
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US2361846A
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US2303453A
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US2314691A
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US2327268A
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US2250207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-13 | 1951-04-14 | 1951-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-13 | 1955-04-14 | 1955-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-13 | 1959-04-14 | 1959-10-14 | $7700.00 | Window Closed / Lapsed |