US3195145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectacle lens system having protective major lens and detachable posterior corrective lens
Assignee: Younger Manufacturing Co
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Filing: 1964-06-10
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Granted: 1965-07-13
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Expires: 1984-06-10
Abstract
No abstract record available.
Inventors
- 👤 Paul W Tisher
- 👤 Kramer Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:44
CPC Classifications
G; G02; G02C; G02C7/00; G02C7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A CORRECTIVE LENS SYSTEM COMPRISING A TRANSPARENT PROTECTIVE LENS OF MAJOR DIMENSION FABRICATED OF SYNTHETIC PLASTIC MATERIAL, SAID PROTECTIVE LENS HAVING A BODY PORTION DIMENSIONED TO OVERLIE THE ORBITAL REGION AND BEING SUBSTANTIALLY CURVILINEAR IN CROSS SECTION WITH A CONCAVE POSTERIOR SURFACE, SAID PROTECTIVE LENS HAVING AN ANNULAR LIP PORTION ON THE POSTERIOR SURFACE OF SAID BODY PORTION AND INTEGRAL THEREWITH, SAID LIP PORTION BEING SPACED INWARDLY FROM THE PERIPHERY OF SAID BODY PORTION AND PROJECTING POSTERIORLY THEREFROM; AND A CORRECTIVE LENS RELEASABLY MOUNTED WITHIN SAID LIP PORTION, SAID LIP PORTION PROVIDING A SEAL ABOUT THE PERIPHERY OF SAID CORRECTIVE LENS AND THE UNDERLYING SURFACE OF THE BODY PORTION TO PREVENT CONTAMINATION AND SOILING OF THE OPPOSED SURFACES THEREOF, SAID BODY PORTION OF SAID PROTECTIVE LENS BEING CONTINUOUS AND EXTENDING ACROSS THE ANNULAR LIP PORTION AND THE ANTERIOR SURFACE OF SAID CORRECTIVE LENS.
Claim 2
Dependent Claim
143 words
A CORRECTIVE LENS SYSTEM COMPRISING A TRANSPARENT PROTECTIVE LENS OF MAJOR DIMENSION FABRICATED OF SYNTHETIC PLASTIC MATERIAL, SAID PROTECTIVE LENS HAVING A BODY PORTION DIMENSIONED TO OVERLIE THE ORBITAL REGION AND BEING SUBSTANTIALLY CURVILINEAR IN CROSS SECTION WITH A CONCAVE POSTERIOR SURFACE, SAID PROTECTIVE LENS HAVING AN ANNULAR LIP PORTION ON THE POSTERIOR SURFACE OF SAID BODY PORTION AND INTEGRAL THEREWITH, SAID LIP PORTION BEING SPACED INWARDLY FROM THE PERIPHERY OF SAID BODY PORTION AND PROJECTING POSTERIORLY THEREFROM; AND A CORRECTIVE LENS RELEASABLY MOUNTED WITHIN SAID LIP PORTION, SAID LIP PORTION PROVIDING A SEAL ABOUT THE PERIPHERY OF SAID CORRECTIVE LENS AND THE UNDERLYING SURFACE OF THE BODY PORTION TO PREVENT CONTAMINATION AND SOILING OF THE OPPOSED SURFACES THEREOF, SAID BODY PORTION OF SAID PROTECTIVE LENS BEING CONTINUOUS AND EXTENDING ACROSS THE ANNULAR LIP PORTION AND THE ANTERIOR SURFACE OF SAID CORRECTIVE LENS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |