Patent US3053420A successfully refreshed from Google Patents.
US3053420A
Expired / Lapsed
US
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Static distributor for pulverulent material
Assignee: Institut de Recherches de la Siderurgie Francaise IRSID
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Filing: 1960-03-08
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Granted: 1962-09-11
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Expires: 1980-03-08
Abstract
No abstract record available.
Inventors
- 👤 Saint-Martin Lucient De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:42
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/04; B65G53/16; B65G53/18; B65G53/22; C; C21; C21C; C21C7/00; C21C7/0037
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |