Patent US2791621A successfully refreshed from Google Patents.
US2417650A
Expired / Lapsed
US
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Cutting torch
Assignee: Individual
•
Filing: 1945-02-02
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Granted: 1947-03-18
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Expires: 1965-02-02
Abstract
No abstract record available.
Inventors
- 👤 Kandel Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:33
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/013
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1687081A
Cited
US1037979A
Cited
GB236098A
Cited
US1609859A
Cited
US1927135A
Cited
US2284648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-17 | 1950-09-16 | 1951-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-17 | 1954-09-16 | 1955-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-17 | 1958-09-16 | 1959-03-18 | $7700.00 | Window Closed / Lapsed |