US2600469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exposure apparatus for photographic contact printing on rotary cylinders
Assignee: Chemische Fabriek L Van der Grinten NV
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Filing: 1948-08-31
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Granted: 1952-06-17
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Expires: 1968-08-31
Abstract
No abstract record available.
Inventors
- 👤 Breuers Theo Pierre Chretien
- 👤 Linthout Theodoor Hillebrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:28
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/18; G03B27/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US601883A
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US1007080A
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US2220526A
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US2202496A
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US2371925A
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US2373040A
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US2384231A
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US2472931A
Cited
US2431520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |