US3269267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sunglasses with aligned infra-red, photochromic and ultraviolet filters
Assignee: Appvion LLC
•
Filing: 1962-11-19
•
Granted: 1966-08-30
•
Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Robert D Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:00
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/06; A61F; A61F9/00; A61F9/02; A61F9/022; A61F9/023; G; G02; G02B; G02B5/00; G02B5/20; G02B5/22; G02B5/23; G02C; G02C7/00; G02C7/10; G02C7/102; G03; G03C; G03C1/00; G03C1/685
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1222049A
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US1678218A
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DE716153C
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US2444976A
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GB730640A
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US2710274A
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GB729861A
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US2871371A
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US3069301A
Cited
FR1218574A
Cited
FR1269822A
Cited
US3152215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |