US2678173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape feed mechanism
Assignee: International Business Machines Corp
•
Filing: 1950-12-29
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Granted: 1954-05-11
•
Expires: 1970-12-29
Abstract
No abstract record available.
Inventors
- 👤 Byron E Phelps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:35
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/56; G11B15/18; G11B15/43; H; H04; H04L; H04L13/00; H04L13/02; H04L13/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1404284A
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US1630713A
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US1999552A
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US2103766A
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US2037806A
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DE624686C
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US2190941A
Cited
US2221384A
Cited
US2366105A
Cited
US2438365A
Cited
US2569264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |