US2919178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical dissolver with feed control
Assignee: Atlantic Chemical and Equipment Co
•
Filing: 1955-05-19
•
Granted: 1959-12-29
•
Expires: 1975-05-19
Abstract
No abstract record available.
Inventors
- 👤 Fred E Fletcher
- 👤 Myles W Fletcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:35
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/688; F24F2003/144
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1063707A
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US956101A
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US967450A
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US991825A
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US1398764A
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US1488125A
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US1630687A
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US1736890A
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US1803860A
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US1915884A
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US2654385A
Cited
US2672878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |