US2485607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing and coating screen material on tubes
Assignee: Allen B du Mont Laboratories Inc
•
Filing: 1945-10-26
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Granted: 1949-10-25
•
Expires: 1965-10-26
Abstract
No abstract record available.
Inventors
- 👤 Kasperowicz Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:13
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; H01J9/227; H01J9/2277
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1096822A
Cited
US1602396A
Cited
US1584914A
Cited
US2334112A
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US2310863A
Cited
US2375177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |