Patent US3489854A successfully refreshed from Google Patents.
US3489854A
Expired / Lapsed
US
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Path selector for use in a switching network
Assignee: US Philips Corp
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Filing: 1965-11-15
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Granted: 1970-01-13
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Expires: 1985-11-15
Abstract
No abstract record available.
Inventors
- 👤 Robert Bertold Buchner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:01
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0008; H04Q3/0012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2348626A
Cited
US2844811A
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US3221102A
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US3310633A
Cited
US3343129A
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US3349187A
Cited
US3286234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |