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US2941393A
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US
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Banded hollow glass structural unit
Assignee: OI Glass Inc
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Filing: 1956-12-07
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Granted: 1960-06-21
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Expires: 1976-12-07
Abstract
No abstract record available.
Inventors
- 👤 Mcdavitt Murray
- 👤 Harvard B Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:21
CPC Classifications
E; E04; E04C; E04C1/00; E04C1/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA489803A
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US2297309A
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US2333723A
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US2397242A
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US2318362A
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US2703486A
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US2714816A
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US2685107A
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US2754237A
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US2776910A
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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) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |