US2645376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container support
Assignee: HELMCO Inc
•
Filing: 1947-07-30
•
Granted: 1953-07-14
•
Expires: 1967-07-30
Abstract
No abstract record available.
Inventors
- 👤 Frederick F Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:16
CPC Classifications
A; A47; A47J; A47J27/00; A47J27/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US814460A
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US744813A
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US862749A
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US874681A
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US928841A
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US1081895A
Cited
US1803755A
Cited
US1903910A
Cited
US2118116A
Cited
US2297843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |