Patent US2615176A successfully refreshed from Google Patents.
US2615176A
Expired / Lapsed
US
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Waste disposal unit for sinks
Assignee: National Rubber Machinery Co
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Filing: 1947-04-23
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Granted: 1952-10-28
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Expires: 1967-04-23
Abstract
No abstract record available.
Inventors
- 👤 Paul A Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:57
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/26; E03C1/266; E03C1/2665
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2244402A
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US1174656A
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US2012680A
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US2044564A
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US2244373A
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US2418366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |