Patent US2545906A successfully refreshed from Google Patents.
US2545906A
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US
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Multiple glass sheet glazing unit having enclosed angled metal slats
Assignee: Libbey Owens Ford Glass Co
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Filing: 1944-12-11
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Granted: 1951-03-20
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Expires: 1964-12-11
Abstract
No abstract record available.
Inventors
- 👤 George B Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:33
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/54; E06; E06B; E06B3/00; E06B3/66; E06B3/67; E06B3/6715; E06B9/00; E06B9/24; E06B9/26; E06B9/264
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US737178A
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US2107994A
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US2235680A
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US2194222A
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US2179763A
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US2322591A
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US2382566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |