Patent US2263731A successfully refreshed from Google Patents.
Patent US2730385A successfully refreshed from Google Patents.
US2730385A
Expired / Lapsed
US
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Soldered elbow
Assignee: KUEHNE Manufacturing CO
•
Filing: 1952-03-22
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Granted: 1956-01-10
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Expires: 1972-03-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Fred Kuehne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:50
CPC Classifications
F; F16; F16L; F16L43/00; F16L43/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US231262A
Cited
US958316A
Cited
FR777911A
Cited
US1734710A
Cited
US1773731A
Cited
DE562227C
Cited
US2101349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |