US2607903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distributor tube construction
Assignee: International Standard Electric Corp
•
Filing: 1947-11-10
•
Granted: 1952-08-19
•
Expires: 1967-11-10
Abstract
No abstract record available.
Inventors
- 👤 Labin Emile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:59
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/02; H01J31/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US420846A
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US2086904A
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US2185684A
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US2204055A
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US2250528A
Cited
US2462896A
Cited
US2468085A
Cited
US2452157A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |