Patent US2443394A successfully refreshed from Google Patents.
US2443394A
Expired / Lapsed
US
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Coupling for hoses and pipes
Assignee: Individual
•
Filing: 1944-05-13
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Granted: 1948-06-15
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Expires: 1964-05-13
Abstract
No abstract record available.
Inventors
- 👤 Clair Camille Clare Sprankl Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:53
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/0804; F16L27/0808; F16L27/0812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US609509A
Cited
US1069916A
Cited
US1082993A
Cited
GB181280A
Cited
US1913030A
Cited
US2026166A
Cited
US2300464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-15 | 1951-12-15 | 1952-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-15 | 1955-12-15 | 1956-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-15 | 1959-12-15 | 1960-06-15 | $7700.00 | Window Closed / Lapsed |