Patent US1981987A successfully refreshed from Google Patents.
US3403263A
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Method and apparatus for optical fiber curve follower including method and apparatus for making position scale therefor
Assignee: Franklin Institute
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Filing: 1964-10-16
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Granted: 1968-09-24
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Expires: 1984-10-16
Abstract
No abstract record available.
Inventors
- 👤 Iii Charles W Hargens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:13
CPC Classifications
D; D05; D05B; D05B35/00; D05B35/10; D05B35/102; D05D; D05D2209/00; D05D2209/02
Claims Analysis
Total Claims: 0
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US3198949A
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US3310681A
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US3335287A
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US3354319A
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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) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |