US3464330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical writing device
Assignee: Lockheed Martin Corp
•
Filing: 1967-11-24
•
Granted: 1969-09-02
•
Expires: 1987-11-24
Abstract
No abstract record available.
Inventors
- 👤 Edward V Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:38
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/14; G02; G02B; G02B6/00; G02B6/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1597487A
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US2368839A
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US2992587A
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US3019344A
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US3027219A
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US3303374A
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US3235672A
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US3258776A
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US3245083A
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US3330182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |