Patent EP0503538A1 successfully refreshed from Google Patents.
US2986247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat insulation
Assignee: Bell Aerospace Corp
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Filing: 1956-05-21
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Granted: 1961-05-30
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Expires: 1976-05-21
Abstract
No abstract record available.
Inventors
- 👤 Schnitt Arthur
- 👤 Lorenzi Ezio P De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:33
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1900711A
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US2067252A
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US2114155A
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US2347756A
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US2655238A
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US2620906A
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US2694475A
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US2656902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |