US2673751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal pipe and coupling therefor
Assignee: Jones and Laughlin Steel Corp
•
Filing: 1950-12-05
•
Granted: 1954-03-30
•
Expires: 1970-12-05
Abstract
No abstract record available.
Inventors
- 👤 Harry J Finch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:35
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/24; F16L37/244; F16L37/2445
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US189477A
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US939036A
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FR746630A
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US2094491A
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US2165163A
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US2321778A
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US2508716A
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US2510377A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |