Patent US2633437A successfully refreshed from Google Patents.
US2633437A
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US
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Method of washing aluminum kitchen utensils
Assignee: Stoelting Brothers Co
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Filing: 1951-07-31
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Granted: 1953-03-31
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Expires: 1971-07-31
Abstract
No abstract record available.
Inventors
- 👤 Edgar W Detjen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:43
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/02; B08B3/022; A; A47; A47L; A47L15/00; A47L15/24; A47L15/241; A47L15/245
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) | 1956-03-30 | 1956-09-29 | 1957-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-30 | 1960-09-29 | 1961-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-30 | 1964-09-29 | 1965-03-31 | $7700.00 | Window Closed / Lapsed |