US2925189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode-ray tube manufacture
Assignee: Corning Glass Works
•
Filing: 1953-10-02
•
Granted: 1960-02-16
•
Expires: 1973-10-02
Abstract
No abstract record available.
Inventors
- 👤 Francis W Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:26
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/24; H01J29/06; H01J29/07; H01J29/073; H01J5/00; H01J5/20; H01J9/00; H01J9/24; H01J9/26; H01J9/263; H01J2893/00; H01J2893/0033; H01J2893/0037
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2202469A
Cited
US2194886A
Cited
US2178826A
Cited
US2254090A
Cited
GB583242A
Cited
US2650683A
Cited
US2635205A
Cited
US2690518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |