US3453607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital communications system for reducing the number of memory cycles
Assignee: GTE Sylvania Inc
•
Filing: 1965-10-24
•
Granted: 1969-07-01
•
Expires: 1985-10-24
Abstract
No abstract record available.
Inventors
- 👤 Edmund U Cohler
- 👤 Harvey Rubinstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:20
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/38; G06F13/14; G06F13/20; G06F13/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3172087A
Cited
US3157860A
Cited
US2991454A
Cited
US3136980A
Cited
US3108257A
Cited
US3164810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |