Patent US2483411A successfully refreshed from Google Patents.
US2720221A
Expired / Lapsed
US
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Flexible metallic hose
Assignee: Electro Hydraulics Ltd
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Filing: 1952-12-23
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Granted: 1955-10-11
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Expires: 1972-12-23
Abstract
No abstract record available.
Inventors
- 👤 Neilson Christopher Berna Vere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:39
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/14; F16L11/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR328650A
Cited
US1284956A
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FR516564A
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US1688303A
Cited
US1819175A
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US1925231A
Cited
GB414233A
Cited
US2367944A
Cited
US2616728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |