Patent US2483450A successfully refreshed from Google Patents.
US2483450A
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US
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Electric detection apparatus
Assignee: PHOTOSWITCH Inc
•
Filing: 1944-10-03
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Granted: 1949-10-04
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Expires: 1964-10-03
Abstract
No abstract record available.
Inventors
- 👤 William F Wolfner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:47
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/013; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7306; Y10T137/7358; Y10T137/7368
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2011381A
Cited
US2112682A
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US2261495A
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US2230693A
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US2352240A
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US2358433A
Cited
US2358432A
Cited
US2349849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |