US2598241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric discharge device
Assignee: Hartford National Bank and Trust Co
•
Filing: 1949-04-30
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Granted: 1952-05-27
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Expires: 1969-04-30
Abstract
No abstract record available.
Inventors
- 👤 Elenbaas Willem
- 👤 Kolkman Dirk
- 👤 Wolf Rein Willemse Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:05
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/92; H01J5/00; H01J5/02; H01J5/08; H01J61/00; H01J61/02; H01J61/54; H01J61/541; H01J61/542; Y; Y10; Y10S; Y10S315/00; Y10S315/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2114535A
Cited
US2110597A
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US2113314A
Cited
US2177105A
Cited
US2291965A
Cited
US2491854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |