US2868070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical printing apparatus
Assignee: American Optical Corp
•
Filing: 1954-10-18
•
Granted: 1959-01-13
•
Expires: 1974-10-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Brian O'bricn
- 👤 O'brien Brian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:16
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1082678A
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US1651574A
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US1801450A
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US1853072A
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US2299682A
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US2650517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |