US2440565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Translating device
Assignee: Rauland Borg Corp
•
Filing: 1944-09-19
•
Granted: 1948-04-27
•
Expires: 1964-09-19
Abstract
No abstract record available.
Inventors
- 👤 John J Antalek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:11
CPC Classifications
H; H01; H01J; H01J21/00; H01J21/02; H01J21/06; H01J21/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1871253A
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US1936922A
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US1831977A
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US2025461A
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US2389935A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-27 | 1951-10-27 | 1952-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-27 | 1955-10-27 | 1956-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-27 | 1959-10-27 | 1960-04-27 | $7700.00 | Window Closed / Lapsed |