US2665394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for controlling the candle power of luminous tubes
Assignee: ABB Norden Holding AB
•
Filing: 1950-06-20
•
Granted: 1954-01-05
•
Expires: 1970-06-20
Abstract
No abstract record available.
Inventors
- 👤 Arvidsson Algot
- 👤 Elmlund Hugo
- 👤 Sonesson Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:08
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/36; H05B41/38; H05B41/39; H05B41/391
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2025471A
Cited
US2142837A
Cited
US2236195A
Cited
US2310743A
Cited
US2439963A
Cited
US2458277A
Cited
US2444408A
Cited
US2462371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |