Patent US3520459A successfully refreshed from Google Patents.
US3520459A
Expired / Lapsed
US
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Tape advance system
Assignee: Texas Instruments Inc
•
Filing: 1967-09-29
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Granted: 1970-07-14
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Expires: 1987-09-29
Abstract
No abstract record available.
Inventors
- 👤 John Mccrady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:03
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K15/16; B; B41; B41J; B41J15/00; B41J15/04; B41J15/06; G06F; G06F3/00; G06F3/01; G06F3/02; G06F3/0202
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US421195A
Cited
US3140031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-13 | 1974-01-12 | 1974-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-13 | 1978-01-12 | 1978-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-13 | 1982-01-12 | 1982-07-14 | $7700.00 | Window Closed / Lapsed |