US3033071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber optical field flattening devices
Assignee: American Optical Corp
•
Filing: 1958-06-03
•
Granted: 1962-05-08
•
Expires: 1978-06-03
Abstract
No abstract record available.
Inventors
- 👤 Jr John W Hicks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:27
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/04; G02B6/06; G02B6/08; G02B15/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49787
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2311704A
Cited
US2354591A
Cited
US2433271A
Cited
US2510106A
Cited
GB725509A
Cited
US2825260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |