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US2866647A
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US
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Dictating machine
Assignee: McGraw Edison Co
•
Filing: 1953-04-10
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Granted: 1958-12-30
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Expires: 1973-04-10
Abstract
No abstract record available.
Inventors
- 👤 Richard M Somers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:05
CPC Classifications
G; G11; G11B; G11B19/00; G11B19/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1139947A
Cited
US2091371A
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US2184914A
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US2296870A
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US2344646A
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US2506665A
Cited
US2613939A
Cited
US2738194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |