US2564897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for manufacture of television tubes
Assignee: Individual
•
Filing: 1949-06-22
•
Granted: 1951-08-21
•
Expires: 1969-06-22
Abstract
No abstract record available.
Inventors
- 👤 Hahn George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:34
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/24; H01J9/26; H01J9/263; C; C03; C03B; C03B23/00; C03B23/20; C03B23/207; C03B23/217; H01J5/00; H01J5/20; H01J5/22; H01J5/24; H01J2893/00; H01J2893/0033; H01J2893/0037; H01J2893/0038; H01J2893/0039; Y; Y10; Y10S; Y10S269/00; Y10S269/908; Y10T; Y10T82/00; Y10T82/25; Y10T82/2593; Y10T82/2597; Y10T82/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1788954A
Cited
US1676795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-20 | 1955-02-19 | 1955-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-20 | 1959-02-19 | 1959-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-20 | 1963-02-19 | 1963-08-21 | $7700.00 | Window Closed / Lapsed |