Patent US2351640A successfully refreshed from Google Patents.
US2351640A
Expired / Lapsed
US
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Flush type fire hydrant and highway construction therefor
Assignee: FLUSH HYDRANT CORP
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Filing: 1941-03-11
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Granted: 1944-06-20
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Expires: 1961-03-11
Abstract
No abstract record available.
Inventors
- 👤 Carlyle H Scott
- 👤 Paul H Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:07
CPC Classifications
E; E03; E03B; E03B9/00; E03B9/02; E03B9/08; Y; Y10; Y10T; Y10T137/00; Y10T137/5327; Y10T137/5456; Y10T137/5462; Y10T137/5497; Y10T137/5503; Y10T137/5515
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-06-20 | 1947-12-20 | 1948-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-06-20 | 1951-12-20 | 1952-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-06-20 | 1955-12-20 | 1956-06-20 | $7700.00 | Window Closed / Lapsed |