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Patent US2465866A successfully refreshed from Google Patents.
US2465866A
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US
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Anticondensation device for flush tanks
Assignee: Individual
•
Filing: 1945-01-11
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Granted: 1949-03-29
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Expires: 1965-01-11
Abstract
No abstract record available.
Inventors
- 👤 Walter L Gaines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:52
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/01; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/6416; Y10T137/8593; Y10T137/87571; Y10T137/87587; Y10T137/87619; Y10T137/87627
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1856184A
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US2087049A
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US2180310A
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GB503918A
Cited
US2146794A
Cited
US2241337A
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US2292689A
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US2329337A
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US2382500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-28 | 1952-09-27 | 1953-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-28 | 1956-09-27 | 1957-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-28 | 1960-09-27 | 1961-03-29 | $7700.00 | Window Closed / Lapsed |