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Patent US2647266A successfully refreshed from Google Patents.
US2647266A
Expired / Lapsed
US
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Flush tank disinfectant dispenser
Assignee: Individual
•
Filing: 1950-04-05
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Granted: 1953-08-04
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Expires: 1970-04-05
Abstract
No abstract record available.
Inventors
- 👤 Vierra Antonc Nunes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:54
CPC Classifications
E; E03; E03D; E03D9/00; E03D9/02; E03D9/03; E03D9/033; E03D9/038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US846831A
Cited
US1094755A
Cited
US1237773A
Cited
US1872645A
Cited
US2188802A
Cited
US2447031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |