US2545907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple glazing unit with light modifying screen
Assignee: Libbey Owens Ford Glass Co
•
Filing: 1949-07-16
•
Granted: 1951-03-20
•
Expires: 1969-07-16
Abstract
No abstract record available.
Inventors
- 👤 George B Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:07
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/264; E06B3/00; E06B3/66; E06B3/67; E06B3/6715
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US620293A
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US1915398A
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US1860232A
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US2264161A
Cited
US2235681A
Cited
US2281071A
Cited
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 |