Patent US2834097A successfully refreshed from Google Patents.
US2834097A
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Welded connections and valves and method of making same
Assignee: GEORGE A BUTLER
•
Filing: 1952-11-24
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Granted: 1958-05-13
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Expires: 1972-11-24
Abstract
No abstract record available.
Inventors
- 👤 Eichenberg Robert
- 👤 J C Shuptrine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:07
CPC Classifications
B; B23; B23K; B23K5/00; B23K5/006; F; F16; F16K; F16K27/00; F16K27/10; F16K27/105; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49405; Y10T29/49412; Y10T29/49425; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1638546A
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US1828478A
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US1598244A
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US2107575A
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GB491703A
Cited
US2308307A
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US2535320A
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US2433638A
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US2632624A
Cited
US2653789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |