US3146367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostrictive apparatus for changing displays
Assignee: General Dynamics Corp
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Filing: 1960-07-05
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Granted: 1964-08-25
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Expires: 1980-07-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph T Mcnaney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:01
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/16; G; G09; G09G; G09G1/00; G09G1/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
69 words
IN COMBINATION, AN ELECTROSTRICTIVE ELEMENT, MEANS FOR APPLYING AN ELECTRICAL SIGNAL TO SAID ELECTROSTRICTIVE ELEMENT TO CAUSE A PORTION OF SAID ELEMENT TO ASSUME VARIOUS POSITIONS DEPENDING UPON SAID ELECTRICAL SIGNAL, A MASK HAVING A PLURALITY OF CHARACTER-SHAPED APERTURES MECHANICALLY COUPLED TO SAID PORTION OF SAID ELECTROSTRICTIVE ELEMENT, AND MEANS FOR DIRECTING A BEAM OF ENERGY AT SAID MASK TO SELECTIVELY SHAPE SAID BEAM DEPENDING UPON SAID ELECTRICAL SIGNAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |