US2497507A
Expired / Lapsed
US
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Electrically conducting multiple panel structure
Assignee: Libbey Owens Ford Glass Co
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Filing: 1947-10-14
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Granted: 1950-02-14
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Expires: 1967-10-14
Abstract
No abstract record available.
Inventors
- 👤 Harold A Mcmaster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:26
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; C03C17/253; B; B64; B64C; B64C1/00; B64C1/14; B64C1/1476; B64C1/1484; H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/1271; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/211; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/111; C03C2218/112
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |