US2839665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatically operated welder head construction
Assignee: Savair Valve & Equipment Co
•
Filing: 1955-02-28
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Granted: 1958-06-17
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Expires: 1975-02-28
Abstract
No abstract record available.
Inventors
- 👤 Eugene A Wolfbauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:03
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/28; B23K11/30; B23K11/31; B23K11/314; B23K11/315; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32467; Y10T403/32516
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2085105A
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US2245920A
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US2293393A
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US2327951A
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US2344055A
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US2514747A
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US2471029A
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US2640368A
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US2661599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |