Patent US3024319A successfully refreshed from Google Patents.
US3024319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single or repetitive reproduction of sound signals on a loop-shaped record
Assignee: Dictaphone Corp
•
Filing: 1958-03-25
•
Granted: 1962-03-06
•
Expires: 1978-03-25
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Roberts
- 👤 John R Montgomery
- 👤 Frederick W Schueler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:01
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/487; H04M3/4872; H04M3/4876; F; F16; F16D; F16D27/00; F16D27/10; F16D27/105; F16D48/00; F16D48/06; F16D48/064; G; G04; G04C; G04C21/00; G04C21/04; G04C21/12; G04C21/14; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/34; G11B25/00; G11B25/06; G11B33/00; G11B33/02; G11B33/06; G11B5/00; G11B5/48; G11B5/52; F16D2027/002; F16D2500/00; F16D2500/10; F16D2500/102; F16D2500/1021
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
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 |