Patent US3643116A successfully refreshed from Google Patents.
US2587213A
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Telemetering device
Assignee: AUDIENCE COMPUTING SYSTEM Inc
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Filing: 1947-03-24
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Granted: 1952-02-26
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Expires: 1967-03-24
Abstract
No abstract record available.
Inventors
- 👤 Herbert S Polin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:02
CPC Classifications
H; H04; H04H; H04H60/00; H04H60/35; H04H60/38; H04H60/41; H04H60/43; H04H20/00; H04H20/20; H04H20/24; H04H60/29; H04H60/33
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2092120A
Cited
US2092119A
Cited
US1990489A
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US1944315A
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US2063610A
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US2206702A
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US2096109A
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US2140016A
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US2188165A
Cited
US2213886A
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US2397562A
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US2513360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |