US3702258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web treatment method
Assignee: Eastman Kodak Co
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Filing: 1969-03-05
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Granted: 1972-11-07
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Expires: 1989-03-05
Abstract
Abstract A WEB WITH A PLASTIC SURFACE IS DISCLOSED AS BEING EXPOSED TO AN A.C.-PRODUCED CORONA THEREBY TO INCREASE ITS PRINTABILITY AND COATABILITY. AS A RESULT OF SUCH TREATMENT THE WEB SURFACE UNDERSIRABLY ACQUIRES PATTERNS OF CHARGE. A CIRCUIT TECHNIQUE IS DISCLOSED FOR SO ERASING SUCH CHARGE PATTERNS THAT THE WEB SURFACE IS ASSUREDLY LEFT SUBSTANTIALLY UNCHARGED.
Inventors
- 👤 Carl B Gibbons
- 👤 William C Kerr
- 👤 Roger H Maddocks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:00
CPC Classifications
H; H05; H05F; H05F3/00
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) | 1975-11-07 | 1976-05-08 | 1976-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-07 | 1980-05-08 | 1980-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-07 | 1984-05-08 | 1984-11-07 | $7700.00 | Window Closed / Lapsed |