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Patent US2988988A successfully refreshed from Google Patents.
US2988988A
Expired / Lapsed
US
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Method of etching and dampening planographic printing plates and fountain solution therefor
Assignee: Xerox Corp
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Filing: 1957-03-18
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Granted: 1961-06-20
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Expires: 1977-03-18
Abstract
No abstract record available.
Inventors
- 👤 Philip F Kurz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:50
CPC Classifications
B; B41; B41N; B41N3/00; B41N3/08; Y; Y10; Y10S; Y10S101/00; Y10S101/37
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) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |