US2805789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container end structure
Assignee: Westinghouse Electric Corp
•
Filing: 1953-11-17
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Granted: 1957-09-10
•
Expires: 1973-11-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward J Kreh
- 👤 Conrad M Ladd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:09
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/06; F16; F16J; F16J13/00; F17C13/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR963387A
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US1902494A
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US1958582A
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US2128093A
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US2352038A
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GB547642A
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US2320941A
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US2697770A
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US2610820A
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US2473555A
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US2640624A
Cited
GB698426A
Cited
DE896585C
Cited
US2711266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |