US2645277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding and cutting torch
Assignee: Individual
•
Filing: 1948-11-23
•
Granted: 1953-07-14
•
Expires: 1968-11-23
Abstract
No abstract record available.
Inventors
- 👤 Charles R Richter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:10
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/38; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87676
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1316681A
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US1114706A
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US1246573A
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US1259885A
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US1266858A
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US1274052A
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US1216875A
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US1424189A
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US1361667A
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FR562420A
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US1660328A
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US1662520A
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US1809652A
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US1832623A
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US2238470A
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US2348774A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |