US3421083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital indicating device for dc voltage source
Assignee: Abbey Electronics Corp
•
Filing: 1965-03-19
•
Granted: 1969-01-07
•
Expires: 1985-03-19
Abstract
No abstract record available.
Inventors
- 👤 Seymour Bosworth
- 👤 Jerome Zauderer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:49
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/18
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) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |