Patent US2770314A successfully refreshed from Google Patents.
US2770314A
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US
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Floor drain
Assignee: Individual
•
Filing: 1954-11-03
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Granted: 1956-11-13
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Expires: 1974-11-03
Abstract
No abstract record available.
Inventors
- 👤 Paul R Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:26
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/04; E03F5/042; F; F16; F16K; F16K15/00; F16K15/02; F16K15/03; F16K15/035; F16K2200/00; F16K2200/20; F16K2200/204; Y; Y10; Y10T; Y10T137/00; Y10T137/4456; Y10T137/4463; Y10T137/4471; Y10T137/4478; Y10T137/4486; Y10T137/4493; Y10T137/4553; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7898; Y10T137/7901; Y10T137/8593; Y10T137/87917; Y10T137/88054
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US278045A
Cited
US748936A
Cited
US828595A
Cited
US920748A
Cited
US1119909A
Cited
US1908819A
Cited
US1837945A
Cited
US2630875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |