US3038491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flush valve apparatus
Assignee: Individual
•
Filing: 1959-08-26
•
Granted: 1962-06-12
•
Expires: 1979-08-26
Abstract
No abstract record available.
Inventors
- 👤 Beazley James Willard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:40
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/32; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7413; Y10T137/7439; Y10T137/7475; Y10T137/7722; Y10T137/7723
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US747413A
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US1059490A
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GB503292A
Cited
US2430152A
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US2520573A
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US2601139A
Cited
US2869142A
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US2905950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |