US2439137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated plastic article
Assignee: THOMPSON S Ltd
•
Filing: 1940-12-20
•
Granted: 1948-04-06
•
Expires: 1960-12-20
Abstract
No abstract record available.
Inventors
- 👤 Auguste V Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:34
CPC Classifications
B; B32; B32B; B32B27/00; F; F41; F41C; F41C23/00; F41C23/18; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24595; Y10T428/24603; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2039372A
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US1398143A
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US1444345A
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US1809984A
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GB340991A
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US1967844A
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GB440578A
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US2020776A
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US2129125A
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US2205891A
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US2249888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-06 | 1951-10-06 | 1952-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-06 | 1955-10-06 | 1956-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-06 | 1959-10-06 | 1960-04-06 | $7700.00 | Window Closed / Lapsed |