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US2792013A
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Siphon device having adjustable primer wells
Assignee: Individual
•
Filing: 1954-12-10
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Granted: 1957-05-14
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Expires: 1974-12-10
Abstract
No abstract record available.
Inventors
- 👤 Bert A Downs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:30
CPC Classifications
E; E03; E03B; E03B11/00; E02; E02B; E02B7/00; E02B7/16; E02B7/18; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2761; Y10T137/2768; Y10T137/2842; Y10T137/2924
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US465734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-13 | 1960-11-12 | 1961-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-13 | 1964-11-12 | 1965-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-13 | 1968-11-12 | 1969-05-14 | $7700.00 | Window Closed / Lapsed |