Patent US2978685A successfully refreshed from Google Patents.
US2978685A
Expired / Lapsed
US
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Tape unit control system
Assignee: NCR Voyix Corp
•
Filing: 1955-02-14
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Granted: 1961-04-04
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Expires: 1975-02-14
Abstract
No abstract record available.
Inventors
- 👤 Donald E Eckdahl
- 👤 Estates Palos Verdes
- 👤 Richard E Sprague
- 👤 Willis E Dobbins
- 👤 Jr Cecil H Burns
- 👤 Walter G Edwards
- 👤 John F Donan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:52
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/06; G06F3/0601; G06F3/0668; G06F3/0671; G06F3/0673; G06F3/0682
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1498544A
Cited
US2609143A
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US2701095A
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US2611025A
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US2721990A
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US2679638A
Cited
US2817829A
Cited
US2702380A
Cited
US2708267A
Cited
US2850234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |