Patent US5173647A successfully refreshed from Google Patents.
Patent US1182873A successfully refreshed from Google Patents.
US1182873A
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Float-operated drain-valve.
Assignee: TITUSVILLE IRON Co
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Filing: 1913-11-20
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Granted: 1916-05-09
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Expires: 1933-11-20
Abstract
No abstract record available.
Inventors
- 👤 Charles E Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:12
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/0011; F02M37/0023; F02B; F02B3/00; F02B3/06; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/304; Y10T137/3052; Y10T137/3068; Y10T137/308; Y10T137/7287; Y10T137/7358; Y10T137/7423; Y10T137/7426; Y10T137/7436
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) | 1919-05-09 | 1919-11-08 | 1920-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-05-09 | 1923-11-08 | 1924-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-05-09 | 1927-11-08 | 1928-05-09 | $7700.00 | Window Closed / Lapsed |