US2566955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Check-endorsing machine
Assignee: International Business Machines Corp
•
Filing: 1945-08-09
•
Granted: 1951-09-04
•
Expires: 1965-08-09
Abstract
No abstract record available.
Inventors
- 👤 Derk J Oldenboom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:42
CPC Classifications
B; B41; B41K; B41K3/00; B41K3/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2175346A
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US1962735A
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US2122136A
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US2179269A
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US2131912A
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US2204971A
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US2237269A
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US2307150A
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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) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |