Patent US3460026A successfully refreshed from Google Patents.
US3460026A
Expired / Lapsed
US
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N-port monolithic thin film distributed resistance network
Assignee: AT&T Inc
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Filing: 1967-05-08
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Granted: 1969-08-05
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Expires: 1987-05-08
Abstract
No abstract record available.
Inventors
- 👤 Robert J Dow
- 👤 David Feldman
- 👤 Samuel C Lee
- 👤 Edward S Mitchell Jr
- 👤 Ralph W Wyndrum Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:13
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/16; H01C1/12; H10; H10N; H10N97/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |