US2897752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed printing apparatus
Assignee: International Business Machines Corp
•
Filing: 1956-12-28
•
Granted: 1959-08-04
•
Expires: 1976-12-28
Abstract
No abstract record available.
Inventors
- 👤 Gustav V A Malmros
- 👤 Richard H Harrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:26
CPC Classifications
B; B41; B41J; B41J9/00; B41J9/26; B41J9/32; H; H04; H04L; H04L13/00; H04L13/18; H04L13/182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1896538A
Cited
US1981990A
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US2053063A
Cited
US2627807A
Cited
US2787210A
Cited
US2766686A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |