Patent US2964070A successfully refreshed from Google Patents.
US2964070A
Expired / Lapsed
US
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Method of filling porous receptacles with powdered materials
Assignee: Agrashell Inc
•
Filing: 1953-09-08
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Granted: 1960-12-13
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Expires: 1973-09-08
Abstract
No abstract record available.
Inventors
- 👤 John H Linhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:49
CPC Classifications
B; B65; B65B; B65B1/00; B65B1/04; B65B1/18; B65B1/20; B65B1/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |