US2931291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital printer and card punch machine
Assignee: Safeguard Corp
•
Filing: 1957-08-12
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Granted: 1960-04-05
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Expires: 1977-08-12
Abstract
No abstract record available.
Inventors
- 👤 Robert E Hopp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:59
CPC Classifications
G; G06; G06K; G06K1/00; G06K1/20; B; B26; B26F; B26F1/00; B26F1/02; B26F1/04; B26D; B26D5/00; B26D5/02; B26F1/32; B26F1/36; B41; B41J; B41J3/00; B41J3/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |