US3420520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet responsive control device
Assignee: Eastman Kodak Co
•
Filing: 1966-01-17
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Granted: 1969-01-07
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Expires: 1986-01-17
Abstract
No abstract record available.
Inventors
- 👤 Albert Carl Wiegert
- 👤 Louis John Cook Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:17
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/001; B07; B07C; B07C1/00; B07C1/02; G; G06; G06K; G06K13/00; G06K13/02; G06K13/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |