Patent US2440133A successfully refreshed from Google Patents.
US2440133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windshield structure for use in automotive vehicles employing antiglare light-polarizing illuminating and viewing means
Assignee: Polaroid Corp
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Filing: 1944-08-09
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Granted: 1948-04-20
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Expires: 1964-08-09
Abstract
No abstract record available.
Inventors
- 👤 Clinton J T Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:40
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/28; G02B27/281
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2237565A
Cited
US1182739A
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US2033377A
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US2168221A
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US2177659A
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US2270323A
Cited
US2301126A
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US2285792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-20 | 1951-10-20 | 1952-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-20 | 1955-10-20 | 1956-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-20 | 1959-10-20 | 1960-04-20 | $7700.00 | Window Closed / Lapsed |