Patent US2446308A successfully refreshed from Google Patents.
US2446308A
Expired / Lapsed
US
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Package
Assignee: Individual
•
Filing: 1942-05-25
•
Granted: 1948-08-03
•
Expires: 1962-05-25
Abstract
No abstract record available.
Inventors
- 👤 Louis B Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:25
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/56; B65D5/60; Y; Y10; Y10S; Y10S383/00; Y10S383/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US717674A
Cited
US925535A
Cited
US1092148A
Cited
FR605183A
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US1833675A
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US2171717A
Cited
US2089483A
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GB462928A
Cited
US2192722A
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US2293182A
Cited
US2162258A
Cited
US2189174A
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US2151202A
Cited
US2216527A
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US2292653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-03 | 1952-02-02 | 1952-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-03 | 1956-02-02 | 1956-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-03 | 1960-02-02 | 1960-08-03 | $7700.00 | Window Closed / Lapsed |