US3265973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of two-port networks having periodically time-varying elements
Assignee: AT&T Inc
•
Filing: 1962-05-16
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Granted: 1966-08-09
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Expires: 1982-05-16
Abstract
No abstract record available.
Inventors
- 👤 Darlington Sidney
- 👤 Irwin W Sandberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:12
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/48; G06G7/62; G06G7/623; H; H03; H03H; H03H19/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
62 words
A PERIODICALLY VARYING TWO-PORT NETWORK COMPRISING A PLURALITY OF INPUT MODULATORS AND A PLURALITY OF OUTPUT MODULATORS, A FIRST SUBPLURALITY OF TWO-POST LINEAR TRANSDUCERS EACH CONNECTED BETWEEN ONE INPUT MODULATOR AND A CORRESPONDING ONE OUTPUT MODULATOR, A SECOND SUBPLURALITY OF LATTICE NETWORKS OF TWO-PART, LINEAR TRANSDUCERS EACH CONNECTED BETWEEN ONE PAIR OF INPUT MODULATORS AND A CORRESPONDING ONE PAIR OF OUTPUT MODULATORS,
References Cited (Backward Citations)
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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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |