US2656093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for closing bags
Assignee: American Rock Wool Corp
•
Filing: 1949-07-28
•
Granted: 1953-10-20
•
Expires: 1969-07-28
Abstract
No abstract record available.
Inventors
- 👤 Gerald R Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:29
CPC Classifications
B; B65; B65D; B65D77/00; B65D77/10; B65D77/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US627195A
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DE531653C
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DE615071C
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US2196185A
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US2215989A
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GB483330A
Cited
US2201675A
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US2246596A
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US2210937A
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US2392206A
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US2381850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |