Patent US2842052A successfully refreshed from Google Patents.
US2842052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet controlled electrically operable time recording device
Assignee: International Business Machines Corp
•
Filing: 1954-03-09
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Granted: 1958-07-08
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Expires: 1974-03-09
Abstract
No abstract record available.
Inventors
- 👤 Coonradt Teall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:32
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1964409A
Cited
US945802A
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US1582217A
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US2019301A
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US2003787A
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US2019897A
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US2111124A
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US2240553A
Cited
US2207144A
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US2385399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |