Patent US4890212A successfully refreshed from Google Patents.
Patent US3236579A successfully refreshed from Google Patents.
US3236579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glare shield for spectacle lens having vacuum cup attachment means
Assignee: Individual
•
Filing: 1960-08-17
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Granted: 1966-02-22
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Expires: 1980-08-17
Abstract
No abstract record available.
Inventors
- 👤 David L Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:17
CPC Classifications
G; G02; G02C; G02C9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A DETACHABLE GLARE SHIELD FOR A SPECTACLE LENS, SAID SHIELD COMPRISING IN COMBINATION A SHEET OF SELECTIVELY TRANSPARENT MATERIAL, SAID SHEET HAVING AN UPPER END PORTION AND A LOWER END PORTION AND TWO SIDE EDGE PORTIONS, SAID UPPER END PORTION HAVING A PAIR OF OPENINGS THERETHROUGH WITH ONE EACH OPENING BEING SPACED CLOSELY ADJACENT EACH OF SAID RESPECTIVE SIDE EDGE PORTIONS, A VACUUM CUP WITHIN EACH SAID OPENING IN SAID SHEET, EACH SAID VACUUM CUP HAVING A SHOULDER PORTION AND A CUPPORTION JOINED BY A NECK PORTION, EACH SAID NECK PORTION EXTENDING THROUGH A RESPECTIVE OF SAID OPENINGS, EACH SAID VACUUM CUP FURTHER INCLUDING A STABILIZER WEDGE ATTACHED THERETO POSITIONABLE BETWEEN THE LENS AND SAID SHEET ADJACENT SAID UPPER END PORTION THEREOF FOR URGING SAID LOWER END PORTION OF SAID SHEET INTO ENGAGEMENT WITH THE LENS WHEN EACH SAID VACUUM CUP IS ATTACHED TO THE LENS.
Claim 2
Dependent Claim
146 words
A DETACHABLE GLARE SHIELD FOR A SPECTACLE LENS, SAID SHIELD COMPRISING IN COMBINATION A SHEET OF SELECTIVELY TRANSPARENT MATERIAL, SAID SHEET HAVING AN UPPER END PORTION AND A LOWER END PORTION AND TWO SIDE EDGE PORTIONS, SAID UPPER END PORTION HAVING A PAIR OF OPENINGS THERETHROUGH WITH ONE EACH OPENING BEING SPACED CLOSELY ADJACENT EACH OF SAID RESPECTIVE SIDE EDGE PORTIONS, A VACUUM CUP WITHIN EACH SAID OPENING IN SAID SHEET, EACH SAID VACUUM CUP HAVING A SHOULDER PORTION AND A CUPPORTION JOINED BY A NECK PORTION, EACH SAID NECK PORTION EXTENDING THROUGH A RESPECTIVE OF SAID OPENINGS, EACH SAID VACUUM CUP FURTHER INCLUDING A STABILIZER WEDGE ATTACHED THERETO POSITIONABLE BETWEEN THE LENS AND SAID SHEET ADJACENT SAID UPPER END PORTION THEREOF FOR URGING SAID LOWER END PORTION OF SAID SHEET INTO ENGAGEMENT WITH THE LENS WHEN EACH SAID VACUUM CUP IS ATTACHED TO THE LENS.
References Cited (Backward Citations)
GB316525A
Cited
US1808208A
Cited
FR686329A
Cited
US1883791A
Cited
GB480600A
Cited
US2172573A
Cited
US2632669A
Cited
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US2475704A
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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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |