US2866113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fine focus x-ray tubes
Assignee: Individual
•
Filing: 1953-10-06
•
Granted: 1958-12-23
•
Expires: 1973-10-06
Abstract
No abstract record available.
Inventors
- 👤 Cosslett Vernon Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:46
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/02; H01J35/14; H01J35/147; H01J35/16; H01J35/18; H01J35/186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL55516C
Cited
US1622149A
Cited
US2329318A
Cited
US2418317A
Cited
US2559526A
Cited
US2597817A
Cited
US2569872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |