Patent US2171587A successfully refreshed from Google Patents.
US2808778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planographic printing plate
Assignee: Columbia Ribbon and Carbon Manufacturing Co Inc
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Filing: 1953-09-16
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Granted: 1957-10-08
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Expires: 1973-09-16
Abstract
No abstract record available.
Inventors
- 👤 Douglas A Newman
- 👤 Allan T Schlotzhauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:19
CPC Classifications
D; D06; D06B; D06B5/00; D06B17/00; D06B17/02; D06C; D06C7/00; D06B2700/00; D06B2700/18; D06C2700/00; D06C2700/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2582347A
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US2542784A
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US2534588A
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US2570262A
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US2534650A
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US2559610A
Cited
US2635537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |