Patent US3945867A successfully refreshed from Google Patents.
Patent US2828043A successfully refreshed from Google Patents.
US2828043A
Expired / Lapsed
US
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Vacuum container
Assignee: Individual
•
Filing: 1954-09-28
•
Granted: 1958-03-25
•
Expires: 1974-09-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry W Hosford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:55
CPC Classifications
A; A47; A47J; A47J41/00; A47J41/02; A47J41/022; A47J41/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1326124A
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US1651655A
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US1639101A
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US2031855A
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US2207543A
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US2387978A
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US2484309A
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US2561294A
Cited
US2633264A
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FR1055504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |