US2675740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glare preventing device and method
Assignee: —
•
Filing: —
•
Granted: 1954-04-20
•
Expires: 1971-04-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:15
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/208; C; C03; C03C; C03C17/00; C03C17/34; C03C17/3411; C03C17/3417; G02C; G02C7/00; G02C7/12; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24628
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1095543A
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US1176313A
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US1206132A
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US1245606A
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US2259395A
Cited
US2366687A
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US2351536A
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US2401443A
Cited
US2409356A
Cited
US2428868A
Cited
US2413606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |