US3424614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning,particularly de-scaling,of metal articles
Assignee: Schloemann AG
•
Filing: 1967-10-30
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Granted: 1969-01-28
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Expires: 1987-10-30
Abstract
No abstract record available.
Inventors
- 👤 Albert Lichte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:58
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2134457A
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US2188930A
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US2311099A
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US2359476A
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US2372599A
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US2377876A
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US2717845A
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US2891881A
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US3126301A
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US3174491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |