US2857923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertically reciprocating washing apparatus operated by compressed air
Assignee: Magnus Chemical Co Inc
•
Filing: 1954-08-10
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Granted: 1958-10-28
•
Expires: 1974-08-10
Abstract
No abstract record available.
Inventors
- 👤 Marcel J Zinty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:36
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/04; B08B3/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US536399A
Cited
US1528405A
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US1097983A
Cited
US1062749A
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US1694616A
Cited
US2398997A
Cited
US2547224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |