Patent US2959900A successfully refreshed from Google Patents.
US2959900A
Expired / Lapsed
US
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Packaging finely divided materials
Assignee: S G LEOFFLER
•
Filing: 1956-10-12
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Granted: 1960-11-15
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Expires: 1976-10-12
Abstract
No abstract record available.
Inventors
- 👤 Ernest S Wollett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:49
CPC Classifications
B; B65; B65B; B65B1/00; B65B1/20; B65B1/24; B30; B30B; B30B15/00; B30B15/30; B30B15/302; B30B15/304; B65B1/26; Y; Y10; Y10S; Y10S264/00; Y10S264/50; Y10S264/78
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |