US2784294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding torch
Assignee: Individual
•
Filing: 1954-03-18
•
Granted: 1957-03-05
•
Expires: 1974-03-18
Abstract
No abstract record available.
Inventors
- 👤 William H Gravert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:45
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/29; B23K9/291
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1963915A
Cited
US2430260A
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US2468805A
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US2468806A
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US2473258A
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US2512706A
Cited
US2512707A
Cited
US2532807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-04 | 1960-09-03 | 1961-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-04 | 1964-09-03 | 1965-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-04 | 1968-09-03 | 1969-03-05 | $7700.00 | Window Closed / Lapsed |