Patent US2444505A successfully refreshed from Google Patents.
US2444505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact printing frame for automatic printing machines
Assignee: Individual
•
Filing: 1945-09-07
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Granted: 1948-07-06
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Expires: 1965-09-07
Abstract
No abstract record available.
Inventors
- 👤 Elmer H Grogan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:44
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US761945A
Cited
US1434455A
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US1552127A
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US1745900A
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US2257444A
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US2251184A
Cited
US2199305A
Cited
CH217788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-06 | 1952-01-05 | 1952-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-06 | 1956-01-05 | 1956-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-06 | 1960-01-05 | 1960-07-06 | $7700.00 | Window Closed / Lapsed |