US1823705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System of articulate sound reproduction
Assignee: EUGENE A WIDMANN
•
Filing: 1930-02-01
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Granted: 1931-09-15
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Expires: 1950-02-01
Abstract
No abstract record available.
Inventors
- 👤 Winfield D Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:56
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/28; H01R4/48; H01R4/4809; H01R4/48185; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/24; H04R1/28; H04R1/2807; H04R1/2811
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1934-09-14 | 1935-03-16 | 1935-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-09-14 | 1939-03-16 | 1939-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-09-14 | 1943-03-16 | 1943-09-15 | $7700.00 | Window Closed / Lapsed |