US3746575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of detecting holidays during dual extrusions
Assignee: ANACONDA ACQUISITION Co
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Filing: 1971-07-21
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Granted: 1973-07-17
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Expires: 1991-07-21
Abstract
Abstract AN APPARATUS AND A METHOD FOR THE DETECTION OF HOLIDAYS IN THE WALL OF A COATING ON A CURVED ELONGATED SURFACE, SUCH AS THAT OF AN ELECTRICAL CONDUCTOR STRAND, EMPLOYS LIGHT-TRANSMITTING FIBERS, DISTRIBUTED AROUND THE STRAND, TO TRANSMIT BOTH THE ILLUMINATION AND THE REFLECTED LIGHT.
Inventors
- 👤 E Arnaudin
- 👤 W Christiansen
- 👤 R Hazelett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:36
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/95; G01N21/952; G01R; G01R31/00; G01R31/50; G01R31/58; G01R31/59; B; B29; B29K; B29K2105/00; B29K2105/06; B29K2105/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |