Patent US2617997A successfully refreshed from Google Patents.
US2617997A
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US
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Sink drain device
Assignee: Bridgeport Brass Co
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Filing: 1950-01-07
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Granted: 1952-11-18
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Expires: 1970-01-07
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Hiertz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:26
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/26; E03C1/262; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB190522775A
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US1162703A
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US1163582A
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GB161368A
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US1859821A
Cited
US2090299A
Cited
US2337331A
Cited
US2477686A
Cited
US2484459A
Cited
US2544498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |