US3204044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic switching telephone system
Assignee: TDK Micronas GmbH
•
Filing: 1964-08-10
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Granted: 1965-08-31
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Expires: 1984-08-10
Abstract
No abstract record available.
Inventors
- 👤 Virgle E Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:40
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/42; H04Q3/52; H04Q3/521; G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/613; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/70; H03K17/72; H03K19/00; H03K19/02; H03K19/173; H03K19/177; H03K19/17736; H03K19/1778; H03K19/17796; H03K23/00; H03K23/002; H04M; H04M19/00; H04M19/001; H10; H10B; H10B99/00; H10B99/16; H10B99/20; H10D; H10D99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A TELEPHONE SYSTEM COMPRISING A PLURALITY OF CASCADED MATRICES, EACH OF SAID MATRICES INCLUDING FIRST AND SECOND MULTIPLES ARRANGED TO PROVIDE INTERSECTION CROSSPOINTS, MEANS FOR IDENTIFYING EACH FIRST MULTIPLE IN A FIRST MATRIX OF SAID CASCADED MATRICS BY AN INDIVIDUALLY ASSOCIATED TIME FRAME, MEANS RESPONSIVE TO SIMULTANEOUS MARKING OF MULTIPLES IN FIRST AND LAST OF SAID CASCADED MATRICES DURING THE TIME FRAME WHICH IDENTIFIES SAID MARKED
Claim 2
Dependent Claim
66 words
A TELEPHONE SYSTEM COMPRISING A PLURALITY OF CASCADED MATRICES, EACH OF SAID MATRICES INCLUDING FIRST AND SECOND MULTIPLES ARRANGED TO PROVIDE INTERSECTION CROSSPOINTS, MEANS FOR IDENTIFYING EACH FIRST MULTIPLE IN A FIRST MATRIX OF SAID CASCADED MATRICS BY AN INDIVIDUALLY ASSOCIATED TIME FRAME, MEANS RESPONSIVE TO SIMULTANEOUS MARKING OF MULTIPLES IN FIRST AND LAST OF SAID CASCADED MATRICES DURING THE TIME FRAME WHICH IDENTIFIES SAID MARKED
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |