US2485829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and method of electrooptically scanning and reproducing recorded oscillations
Assignee: Hartford National Bank and Trust Co
•
Filing: 1946-05-03
•
Granted: 1949-10-25
•
Expires: 1966-05-03
Abstract
No abstract record available.
Inventors
- 👤 Holst Gilles
- 👤 Vermeulen Roelof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:06
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/004; G11B7/005; G01; G01R; G01R13/00; G01R13/38; G11B20/00; G11B20/24; G11B7/002; G11B7/003; G11B7/0032
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2251332A
Cited
US2347084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |