US2817703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric selective apparatus
Assignee: Individual
•
Filing: 1952-12-15
•
Granted: 1957-12-24
•
Expires: 1972-12-15
Abstract
No abstract record available.
Inventors
- 👤 Naxon Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:00
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/004; H; H01; H01H; H01H63/00; H01H63/36; H01H63/38; Y; Y10; Y10S; Y10S200/00; Y10S200/29; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US767599A
Cited
US1563906A
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US2006999A
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US2254289A
Cited
US2275436A
Cited
US2254814A
Cited
US2292489A
Cited
US2343297A
Cited
US2406028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |