Patent US3504114A successfully refreshed from Google Patents.
US3504114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive image system
Assignee: Westinghouse Electric Corp
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Filing: 1969-02-24
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Granted: 1970-03-31
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Expires: 1989-02-24
Abstract
No abstract record available.
Inventors
- 👤 Edgar L Irwin
- 👤 Pieter De Wit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:29
CPC Classifications
H; H10; H10F; H10F39/00; H10F39/10; H10F39/107; H04; H04N; H04N25/00; H04N25/70; H04N25/71; H04N25/745; H04N25/76; H04N25/7795; H04N3/00; H04N3/10; H04N3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-30 | 1973-09-29 | 1974-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-30 | 1977-09-29 | 1978-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-30 | 1981-09-29 | 1982-03-31 | $7700.00 | Window Closed / Lapsed |