US3452203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triode type x-ray tubes and method and apparatus for irradiating x-rays
Assignee: Toshiba Corp
•
Filing: 1966-08-24
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Granted: 1969-06-24
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Expires: 1986-08-24
Abstract
No abstract record available.
Inventors
- 👤 Koichiro Shiga
- 👤 Motoshige Yoshida
- 👤 Yoichi Haga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:16
CPC Classifications
H; H05; H05G; H05G1/00; H05G1/08; H05G1/26; H05G1/30; H05G1/52; H01; H01J; H01J35/00; H01J35/02; H01J35/14
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) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |