Patent US2862160A successfully refreshed from Google Patents.
US2862160A
Expired / Lapsed
US
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Light sensitive device and method of making the same
Assignee: Hoffman Electronics Corp
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Filing: 1955-10-18
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Granted: 1958-11-25
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Expires: 1975-10-18
Abstract
No abstract record available.
Inventors
- 👤 Ross Bernd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:00
CPC Classifications
H; H10; H10P; H10P95/00; H10F; H10F99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2646536A
Cited
FR1038658A
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US2792538A
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US2654059A
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US2750542A
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US2748325A
Cited
US2736847A
Cited
US2794846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |