US2654609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dictation machine
Assignee: Individual
•
Filing: 1949-06-15
•
Granted: 1953-10-06
•
Expires: 1969-06-15
Abstract
No abstract record available.
Inventors
- 👤 Shepherd Judson O'd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:52
CPC Classifications
G; G11; G11B; G11B9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB384258A
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GB447901A
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US2191691A
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US2188687A
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US2256093A
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US2396563A
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US2263316A
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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) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |