US2617667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irrigation pipe coupler
Assignee: FARMLAND IRRIGATION Co IN
•
Filing: 1948-06-22
•
Granted: 1952-11-11
•
Expires: 1968-06-22
Abstract
No abstract record available.
Inventors
- 👤 William H Stout
- 👤 Wyatt W Stout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:45
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/50; F16L37/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US213278A
Cited
US656956A
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US924368A
Cited
US1871810A
Cited
US2086376A
Cited
US2278074A
Cited
US2451437A
Cited
US2449735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |