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US2441831A
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Glazing unit
Assignee: Libbey Owens Ford Glass Co
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Filing: 1942-01-24
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Granted: 1948-05-18
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Expires: 1962-01-24
Abstract
No abstract record available.
Inventors
- 👤 Harold K Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:54
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/14; B64C1/1476; B64C1/1484
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1401303A
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US1479725A
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US1679252A
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US1739766A
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US1816711A
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GB356540A
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US2054937A
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US2021661A
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US2222742A
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US2264285A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-18 | 1951-11-17 | 1952-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-18 | 1955-11-17 | 1956-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-18 | 1959-11-17 | 1960-05-18 | $7700.00 | Window Closed / Lapsed |