US2417075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding apparatus
Assignee: Individual
•
Filing: 1944-12-15
•
Granted: 1947-03-11
•
Expires: 1964-12-15
Abstract
No abstract record available.
Inventors
- 👤 Kenneth V Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:20
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1810225A
Cited
US1861005A
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US1954426A
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US1976552A
Cited
US2313941A
Cited
US2365148A
Cited
US2330658A
Cited
US2363753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-10 | 1950-09-09 | 1951-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-10 | 1954-09-09 | 1955-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-10 | 1958-09-09 | 1959-03-11 | $7700.00 | Window Closed / Lapsed |