US2429874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing press
Assignee: Individual
•
Filing: 1944-12-21
•
Granted: 1947-10-28
•
Expires: 1964-12-21
Abstract
No abstract record available.
Inventors
- 👤 Roy L Friel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:17
CPC Classifications
B; B41; B41F; B41F1/00; B41F1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US515566A
Cited
US1211459A
Cited
US1405513A
Cited
US1492871A
Cited
US1833937A
Cited
US1754361A
Cited
US2036259A
Cited
US2362134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-27 | 1951-04-28 | 1951-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-27 | 1955-04-28 | 1955-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-27 | 1959-04-28 | 1959-10-28 | $7700.00 | Window Closed / Lapsed |