Patent US2941499A successfully refreshed from Google Patents.
US2941499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of lithographic printing plates
Assignee: Intercompany Corp
•
Filing: 1957-08-15
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Granted: 1960-06-21
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Expires: 1977-08-15
Abstract
No abstract record available.
Inventors
- 👤 Ernest R Gutzmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:33
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/16; G03F7/162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1424986A
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US1530185A
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US1947610A
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US2084642A
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US2253283A
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US2386591A
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US2519809A
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US2556744A
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US2698097A
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US2665013A
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GB775809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |