US3532033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-optic light beam control for displaying and printing
Assignee: International Business Machines Corp
•
Filing: 1968-06-18
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Granted: 1970-10-06
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Expires: 1988-06-18
Abstract
No abstract record available.
Inventors
- 👤 David C Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:42
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/29; G02F1/31; B; B41; B41B; B41B21/00; B41B21/02; B41B21/04; B41B21/16; B41B27/00; B41B27/28; G06; G06K; G06K15/00; G06K15/02; G06K15/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |