Patent US2527632A successfully refreshed from Google Patents.
US2527632A
Expired / Lapsed
US
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Storage tube
Assignee: AT&T Inc
•
Filing: 1948-01-29
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Granted: 1950-10-31
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Expires: 1968-01-29
Abstract
No abstract record available.
Inventors
- 👤 Robert E Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:04
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/58; H01J31/60; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/44; Y; Y10; Y10S; Y10S313/00; Y10S313/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2124057A
Cited
US2277008A
Cited
US2277009A
Cited
US2460093A
Cited
US2470875A
Cited
US2462569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |