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Patent US3481661A successfully refreshed from Google Patents.
US3481661A
Expired / Lapsed
US
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Light deflector
Assignee: International Business Machines Corp
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Filing: 1965-12-27
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Granted: 1969-12-02
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Expires: 1985-12-27
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:21
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/29; G02F1/31; G02B; G02B27/00; G02B27/28; G02B27/283
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) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |