US2511329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens shield
Assignee: Individual
•
Filing: 1946-12-26
•
Granted: 1950-06-13
•
Expires: 1966-12-26
Abstract
No abstract record available.
Inventors
- 👤 Craig Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:24
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/02; A61F9/022; G; G02; G02C; G02C7/00; G02C7/02; G02C7/08; G02C7/086; G02C7/10; G02C7/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1335517A
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US1545978A
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US1630193A
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GB314744A
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US1805396A
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US1942287A
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US1989371A
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US2046924A
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US2031045A
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US2158129A
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US2190582A
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US2248317A
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US2391539A
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US2413193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |