US2949846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing mechanism
Assignee: Unisys Corp
•
Filing: 1958-03-28
•
Granted: 1960-08-23
•
Expires: 1978-03-28
Abstract
No abstract record available.
Inventors
- 👤 Paul R Hoffman
- 👤 Harley E Kelchner
- 👤 Jr Frank H Moore
- 👤 Jr Edwin A Fricke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:27
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K15/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US950473A
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US1405722A
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US2066784A
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US2227143A
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US2566944A
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US2805620A
Cited
US2766686A
Cited
US2776618A
Cited
US2831424A
Cited
US2800073A
Cited
US2824513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |