Patent US2440527A successfully refreshed from Google Patents.
US2440527A
Expired / Lapsed
US
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Acetylene torch cutter support
Assignee: AMERICAN PIPE AND STEEL Corp
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Filing: 1944-09-04
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Granted: 1948-04-27
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Expires: 1964-09-04
Abstract
No abstract record available.
Inventors
- 👤 Hyrum M Talley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:24
CPC Classifications
B; B23; B23K; B23K37/00; B23K37/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US429657A
Cited
US1351731A
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US1547166A
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FR607328A
Cited
US1737836A
Cited
CH140372A
Cited
FR727318A
Cited
CH167454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-27 | 1951-10-27 | 1952-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-27 | 1955-10-27 | 1956-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-27 | 1959-10-27 | 1960-04-27 | $7700.00 | Window Closed / Lapsed |