US2909686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray tube
Assignee: General Electric Co
•
Filing: 1955-06-29
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Granted: 1959-10-20
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Expires: 1975-06-29
Abstract
No abstract record available.
Inventors
- 👤 Michael J Zunick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:29
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/02; H01J35/16; H01J35/18; H01J2235/00; H01J2235/12; H01J2235/1204; H01J2235/1225; H01J2235/1262
Claims Analysis
Total Claims: 0
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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) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |