Patent US3384755A successfully refreshed from Google Patents.
US3384755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical inspection devices
Assignee: Molins Machine Co Ltd
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Filing: 1966-07-28
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Granted: 1968-05-21
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Expires: 1986-07-28
Abstract
No abstract record available.
Inventors
- 👤 David T N Williamson
- 👤 Muir Douglas Willia Ballantyne
- 👤 Crosland Richard Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:24
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/26; G01D5/32; G01D5/34; G01D5/347; G01D5/34707; G01D5/34715; G01D5/34723; G01D5/36; G01D5/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
MEASURING APPARATUS COMPRISING A SCALE HAVING BAND MARKINGS THEREON AND AN INSPECTION DEVICE, SAID DEVICE INCLUDING A PLURALITY OF LIGHT-CONDUCTING FIBRES, A COMPOSITE LIGHT-TRANSMITTING SURFACE EMBODYING ONE END OF EACH OF SAID FIBRES AND CONFRONTING SAID SCALE, MEANS HOLDING THE OTHER ENDS OF SAID FIBRES IN SUCH POSITIONS AS TO FORM AT LEAST TWO GROUPS, FURTHER LIGHT-TRANSMITTING SURFACES EACH EMBODYING SAID OTHER ENDS OF THE FIBRES FORMING A DIFFERENT ONE OF SAID GROUPS, AN ILLUMINATOR CONFRONTING ONE OF SAID FURTHER SURFACES, AND A SENSING DEVICE CONFRONTING EACH OF THE REMAINING FURTHER SURFACES, THE ENDS OF THE FIBRES IN THE COMPOSITE SURFACE BEING ARRANGED IN BANDS CORRESPONDING TO THE BAND MARKINGS ON THE SCALE, EACH OF SAID BANDS CONTAINING THE END OF AT LEAST ONE FIBER FROM SAID GROUP CONFRONTED BY AN ILLUMINATOR AND AT LEAST ONE FIBER FROM AT LEAST ONE OF SAID REMAINING GROUPS.
Claim 2
Dependent Claim
145 words
MEASURING APPARATUS COMPRISING A SCALE HAVING BAND MARKINGS THEREON AND AN INSPECTION DEVICE, SAID DEVICE INCLUDING A PLURALITY OF LIGHT-CONDUCTING FIBRES, A COMPOSITE LIGHT-TRANSMITTING SURFACE EMBODYING ONE END OF EACH OF SAID FIBRES AND CONFRONTING SAID SCALE, MEANS HOLDING THE OTHER ENDS OF SAID FIBRES IN SUCH POSITIONS AS TO FORM AT LEAST TWO GROUPS, FURTHER LIGHT-TRANSMITTING SURFACES EACH EMBODYING SAID OTHER ENDS OF THE FIBRES FORMING A DIFFERENT ONE OF SAID GROUPS, AN ILLUMINATOR CONFRONTING ONE OF SAID FURTHER SURFACES, AND A SENSING DEVICE CONFRONTING EACH OF THE REMAINING FURTHER SURFACES, THE ENDS OF THE FIBRES IN THE COMPOSITE SURFACE BEING ARRANGED IN BANDS CORRESPONDING TO THE BAND MARKINGS ON THE SCALE, EACH OF SAID BANDS CONTAINING THE END OF AT LEAST ONE FIBER FROM SAID GROUP CONFRONTED BY AN ILLUMINATOR AND AT LEAST ONE FIBER FROM AT LEAST ONE OF SAID REMAINING GROUPS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |