US2869416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical fabric analyzer
Assignee: Institute of Textile Technology
•
Filing: 1955-04-14
•
Granted: 1959-01-20
•
Expires: 1975-04-14
Abstract
No abstract record available.
Inventors
- 👤 Donald F Nieman
- 👤 William J Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:20
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/89; G01N21/892; G01N21/898; G01N21/8983
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2731878A
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US1015730A
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US1917379A
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US1949619A
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DE637568C
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GB642456A
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DE899277C
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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) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |