US2539609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of composing type lines for reproduction
Assignee: Individual
•
Filing: 1947-02-27
•
Granted: 1951-01-30
•
Expires: 1967-02-27
Abstract
No abstract record available.
Inventors
- 👤 Donald F Buckingham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:51
CPC Classifications
G; G03; G03F; G03F1/00; G03F1/90; B; B42; B42C; B42C1/00; B42C1/12; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T156/1057; Y10T156/1062; Y10T156/1075; Y10T156/1077; Y10T156/1082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1875410A
Cited
US1937858A
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US2166819A
Cited
US2200203A
Cited
US2250583A
Cited
US2372994A
Cited
US2391539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |