US2742831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photocomposing unit
Assignee: WIRTZ Co
•
Filing: 1952-11-03
•
Granted: 1956-04-24
•
Expires: 1972-11-03
Abstract
No abstract record available.
Inventors
- 👤 Robert W Wirtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:45
CPC Classifications
B; B41; B41B; B41B17/00; B41B17/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US943614A
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US1283394A
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US1259355A
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GB174621A
Cited
US1553920A
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US1968287A
Cited
US1974353A
Cited
US2203437A
Cited
US2085188A
Cited
US2298666A
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US2475497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |