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US3420600A
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Interferometric optical modulator
Assignee: Boeing North American Inc
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Filing: 1964-10-26
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Granted: 1969-01-07
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Expires: 1984-10-26
Abstract
No abstract record available.
Inventors
- 👤 Gus E Mevers
- 👤 David B Pollock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:27
CPC Classifications
G; G01; G01B; G01B9/00; G01B9/02; G02; G02F; G02F1/00; G02F1/01; G02F1/21; G01B2290/00; G01B2290/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3202052A
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US3230475A
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US3233108A
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US3277393A
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US3302028A
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US3302027A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |