US3024320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dictating machine erasure unit
Assignee: JAMES A FRASER
•
Filing: 1958-06-20
•
Granted: 1962-03-06
•
Expires: 1978-06-20
Abstract
No abstract record available.
Inventors
- 👤 William M Nye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:05
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/02; G11B5/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE585258C
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US2288862A
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US2428449A
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US2428002A
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US2499700A
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US2719884A
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US2738384A
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US2917250A
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US2594934A
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GB688567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |