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US2439845A
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Assignee: ARTHUR E WRIGHT
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Filing: 1943-10-12
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Granted: 1948-04-20
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Expires: 1963-10-12
Abstract
No abstract record available.
Inventors
- 👤 Swart Jan De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:10
CPC Classifications
B; B65; B65D; B65D45/00; B65D45/32; B65D45/322
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1258465A
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GB200411A
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US1758696A
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US1862620A
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US1985258A
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US2099056A
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GB388711A
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US2162712A
Cited
US2186518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-20 | 1951-10-20 | 1952-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-20 | 1955-10-20 | 1956-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-20 | 1959-10-20 | 1960-04-20 | $7700.00 | Window Closed / Lapsed |