Patent US3287581A successfully refreshed from Google Patents.
US3287581A
Expired / Lapsed
US
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X-ray vidicon tube having screen hermetically sealed to envelope
Assignee: Machlett Laboratories Inc
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Filing: 1962-04-30
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Granted: 1966-11-22
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Expires: 1982-04-30
Abstract
No abstract record available.
Inventors
- 👤 Rome Martin
- 👤 Harold O W Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:04
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/49; H01J29/00; H01J29/02; H01J29/026; H01J29/10; H01J29/36; H01J29/39; H01J29/45; H01J29/458; H01J31/26; H01J31/48; H01J5/00; H01J5/02; H01J5/18
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |