US2583953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical apparatus
Assignee: Individual
•
Filing: 1946-03-29
•
Granted: 1952-01-29
•
Expires: 1966-03-29
Abstract
No abstract record available.
Inventors
- 👤 John D Kraus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:56
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/10; H01Q19/106; G; G01; G01R; G01R29/00; G01R29/08; G01R29/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2131108A
Cited
US2210066A
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US2134126A
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US2224898A
Cited
US2204175A
Cited
US2275646A
Cited
US2283620A
Cited
US2419552A
Cited
US2434893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |