US2665391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray tube having a mica window
Assignee: Amperex Electronic Corp
•
Filing: 1950-03-04
•
Granted: 1954-01-05
•
Expires: 1970-03-04
Abstract
No abstract record available.
Inventors
- 👤 Bleeksma Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:51
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/02; H01J35/16; H01J35/18; H01J2235/00; H01J2235/16; H01J2235/165; H01J2235/168
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1626693A
Cited
US1626465A
Cited
US2024332A
Cited
US1927475A
Cited
US2009457A
Cited
US2125700A
Cited
US2356645A
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 |