US2187126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lenard ray tube head
Assignee: KOLORAMA LAB Inc
•
Filing: 1937-11-26
•
Granted: 1940-01-16
•
Expires: 1957-11-26
Abstract
No abstract record available.
Inventors
- 👤 Emil A Kern
- 👤 Stewart L Clothier
- 👤 Harold C Hogencamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:13
CPC Classifications
H; H01; H01J; H01J33/00; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/205
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-01-15 | 1943-07-17 | 1944-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-01-15 | 1947-07-17 | 1948-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-01-15 | 1951-07-17 | 1952-01-16 | $7700.00 | Window Closed / Lapsed |