US2456560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Receptacle closure means
Assignee: BARNETT B COVENT
•
Filing: 1944-02-14
•
Granted: 1948-12-14
•
Expires: 1964-02-14
Abstract
No abstract record available.
Inventors
- 👤 Keith Glenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:26
CPC Classifications
B; B65; B65D; B65D53/00; B65D53/06; B65D41/00; B65D41/02; B65D41/04; B65D41/0435; Y; Y10; Y10S; Y10S215/00; Y10S215/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US129546A
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US228696A
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US794987A
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US1439452A
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US1917175A
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US1966202A
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US2072536A
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US2176057A
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GB528359A
Cited
GB724589A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-14 | 1952-06-14 | 1952-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-14 | 1956-06-14 | 1956-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-14 | 1960-06-14 | 1960-12-14 | $7700.00 | Window Closed / Lapsed |