Patent US2661599A successfully refreshed from Google Patents.
US2661599A
Expired / Lapsed
US
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Pneumatically operated welder head construction
Assignee: Individual
•
Filing: 1950-12-26
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Granted: 1953-12-08
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Expires: 1970-12-26
Abstract
No abstract record available.
Inventors
- 👤 Folmer Frank Fredrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:02
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/30; B23K11/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US747772A
Cited
US2055815A
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US2460196A
Cited
US2434351A
Cited
US2605771A
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US2467628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |