US2453194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light polarizing headlight lamination
Assignee: Polaroid Corp
•
Filing: 1946-03-07
•
Granted: 1948-11-09
•
Expires: 1966-03-07
Abstract
No abstract record available.
Inventors
- 👤 Harold O Buzzell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:36
CPC Classifications
F; F21; F21S; F21S41/00; F21S41/10; F21S41/12; F21S41/135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1692619A
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US2092789A
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GB460666A
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US2168221A
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US2180114A
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US2356250A
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US2244702A
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US2252324A
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US2320375A
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GB539135A
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US2370697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-09 | 1952-05-10 | 1952-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-09 | 1956-05-10 | 1956-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-09 | 1960-05-10 | 1960-11-09 | $7700.00 | Window Closed / Lapsed |