US2496347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inert gas blanketed welding rod feed process
Assignee: Linde Air Products Co
•
Filing: 1946-09-05
•
Granted: 1950-02-07
•
Expires: 1966-09-05
Abstract
No abstract record available.
Inventors
- 👤 Harry T Herbst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:26
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/16; B23K9/167
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1707433A
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US2091308A
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US2216564A
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US2306050A
Cited
US2274631A
Cited
US2357376A
Cited
US2360160A
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US2400903A
Cited
US2411465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |