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US2833937A
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US
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Compensator, regulator, and two-point compensator-regulator for photoelectric amplifier and sorting system
Assignee: Mandrel Industries Inc
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Filing: 1952-06-19
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Granted: 1958-05-06
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Expires: 1972-06-19
Abstract
No abstract record available.
Inventors
- 👤 David C Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:27
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/04; H01J43/30; B; B07; B07C; B07C5/00; B07C5/34; B07C5/342
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2673559A
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US737200A
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US2264621A
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US2228560A
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US2501743A
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US2586804A
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US2544340A
Cited
US2536693A
Cited
US2499921A
Cited
US2497691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |