Patent US2893431A successfully refreshed from Google Patents.
US2893431A
Expired / Lapsed
US
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Reinforced expansible tube
Assignee: Schneider Electric Systems USA Inc
•
Filing: 1954-11-24
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Granted: 1959-07-07
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Expires: 1974-11-24
Abstract
No abstract record available.
Inventors
- 👤 Hoel L Bowditch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:49
CPC Classifications
F; F16; F16L; F16L51/00; F16L51/02; F16L51/025; F16L51/027; F16J; F16J3/00; F16J3/04; F16J3/048; F16K; F16K31/00; F16K31/12; F16K31/126; F16K31/1262; G; G05; G05D; G05D23/00; G05D23/01; G05D23/12; G05D23/121
Claims Analysis
Total Claims: 0
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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) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |