US2983824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-optical point shutter
Assignee: International Business Machines Corp
•
Filing: 1955-05-06
•
Granted: 1961-05-09
•
Expires: 1975-05-06
Abstract
No abstract record available.
Inventors
- 👤 Richard W Weeks
- 👤 Wesley E Dickinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:10
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/03; G02F1/0333; H; H04; H04N; H04N5/00; H04N5/74; H04N5/7416; H04N5/7425; H04N9/00; H04N9/12; H04N9/16; H04N9/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2259507A
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US2330171A
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US2277008A
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US2276360A
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US2277009A
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US2481622A
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US2616962A
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US2705903A
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US2667596A
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US2766659A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |