Patent US2202670A successfully refreshed from Google Patents.
Patent US3061781A successfully refreshed from Google Patents.
US3061781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for visual indication of direct voltages
Assignee: US Philips Corp
•
Filing: 1960-03-22
•
Granted: 1962-10-30
•
Expires: 1980-03-22
Abstract
No abstract record available.
Inventors
- 👤 Diemer Gesinus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:33
CPC Classifications
H; H05; H05B; H05B44/00
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) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |