US3533073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital control and memory arrangement,particularly for a communication switching system
Assignee: Automatic Electric Laboratories Inc
•
Filing: 1967-09-12
•
Granted: 1970-10-06
•
Expires: 1987-09-12
Abstract
No abstract record available.
Inventors
- 👤 Howard L Wirsing
- 👤 William C Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:46
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/46; G06F9/52; G06F12/00; G06F12/14; G06F13/00; G06F13/14; G06F13/16; G06F13/18; G06F13/20; G06F13/22; G06F3/00; H; H04; H04Q; H04Q3/00; H04Q3/42; H04Q3/54; H04Q3/545; H04Q3/54508; H04Q3/54533
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3221103A
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US3247488A
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US3223976A
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US3328534A
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US3403383A
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US3348210A
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US3401380A
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US3408628A
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US3469239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |