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US2524936A
Expired / Lapsed
US
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Yarn testing device
Assignee: Celanese Corp
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Filing: 1944-08-02
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Granted: 1950-10-10
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Expires: 1964-08-02
Abstract
No abstract record available.
Inventors
- 👤 Smith Leland Gerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:09
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/36; G01N33/365
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1683833A
Cited
US2014998A
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US1960350A
Cited
US1961965A
Cited
US2045970A
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US2199396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |