US2768050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical signal recording
Assignee: Individual
•
Filing: 1950-02-25
•
Granted: 1956-10-23
•
Expires: 1970-02-25
Abstract
No abstract record available.
Inventors
- 👤 Alden Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:17
CPC Classifications
G; G01; G01D; G01D9/00; G01D9/28; G01D9/30; G01C; G01C7/00; G01S; G01S15/00; G01S15/88; G01S15/89
Claims Analysis
Total Claims: 0
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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) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |