Patent US2833387A successfully refreshed from Google Patents.
US2833387A
Expired / Lapsed
US
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Serial printer
Assignee: International Business Machines Corp
•
Filing: 1955-04-05
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Granted: 1958-05-06
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Expires: 1975-04-05
Abstract
No abstract record available.
Inventors
- 👤 Clair D Lake
- 👤 Fiehl Michael
- 👤 Mortimer L Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:55
CPC Classifications
B; B41; B41J; B41J7/00; B41J7/02; B41J7/04; B41J7/06; B41J23/00; B41J23/32; B41J23/34; B41J23/36
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |