US2904777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape reading system
Assignee: General Electric Co
•
Filing: 1956-11-05
•
Granted: 1959-09-15
•
Expires: 1976-11-05
Abstract
No abstract record available.
Inventors
- 👤 Cox Bonnar
- 👤 Goldberg Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:07
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)
US2782985A
Cited
US2782398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |