Patent US2408627A successfully refreshed from Google Patents.
US2537056A
Expired / Lapsed
US
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Pulse multiplex system
Assignee: Individual
•
Filing: 1946-11-13
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Granted: 1951-01-09
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Expires: 1966-11-13
Abstract
No abstract record available.
Inventors
- 👤 Conrad H Hoeppner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:12
CPC Classifications
H; H04; H04J; H04J3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2262838A
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US2272070A
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US2402916A
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US2402917A
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US2414265A
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US2418116A
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US2413023A
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US2406165A
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US2416330A
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US2408077A
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US2409229A
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US2443198A
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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) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |