US2741312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicia-controlled record perforating machine
Assignee: International Business Machines Corp
•
Filing: 1951-09-18
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Granted: 1956-04-10
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Expires: 1971-09-18
Abstract
No abstract record available.
Inventors
- 👤 Reynold B Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:53
CPC Classifications
G; G06; G06V; G06V30/00; G06V30/10; G06V30/22; G06V30/224
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1117184A
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US2007391A
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US2137131A
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US2063431A
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US2275396A
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US2372882A
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US2407196A
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US2609050A
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US2607841A
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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) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |