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Patent US2779512A successfully refreshed from Google Patents.
US2779512A
Expired / Lapsed
US
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Powder dispenser
Assignee: Steele Chemicals Co Ltd
•
Filing: 1954-07-08
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Granted: 1957-01-29
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Expires: 1974-07-08
Abstract
No abstract record available.
Inventors
- 👤 Bruce B Steele
- 👤 Leonard G Schantz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:19
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US183684A
Cited
US1560824A
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US1852198A
Cited
US1982917A
Cited
US2005029A
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US2135665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |