US2691900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible conduit
Assignee: United States Steel Corp
•
Filing: 1950-05-23
•
Granted: 1954-10-19
•
Expires: 1970-05-23
Abstract
No abstract record available.
Inventors
- 👤 Alan E Brickman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:33
CPC Classifications
F; F16; F16C; F16C1/00; F16C1/26; F16C1/262; B; B60; B60T; B60T11/00; B60T11/04; B60T11/046; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/20456
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US679343A
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GB190304316A
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US901339A
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US1639742A
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US1867579A
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US1821646A
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US2083937A
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US2189452A
Cited
US2308669A
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US2492030A
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GB609567A
Cited
US2530164A
Cited
US2550669A
Cited
US2531095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-18 | 1958-04-19 | 1958-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-18 | 1962-04-19 | 1962-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-18 | 1966-04-19 | 1966-10-19 | $7700.00 | Window Closed / Lapsed |