Patent US2790571A successfully refreshed from Google Patents.
US2790571A
Expired / Lapsed
US
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Closure and tapping construction
Assignee: Individual
•
Filing: 1953-05-18
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Granted: 1957-04-30
•
Expires: 1973-05-18
Abstract
No abstract record available.
Inventors
- 👤 Flaith George Donald
- 👤 Jr Joseph E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:10
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/32; Y; Y10; Y10S; Y10S285/00; Y10S285/918; Y10T; Y10T137/00; Y10T137/598; Y10T137/612; Y10T137/613; Y10T137/6133; Y10T403/00; Y10T403/70; Y10T403/7005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US327509A
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US2056524A
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US2346445A
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US2352728A
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US2353252A
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US2470800A
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US2429782A
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US2577009A
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US2630131A
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US2661018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |