Patent US2495669A successfully refreshed from Google Patents.
US2495669A
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Fluid apparatus
Assignee: American Steel Foundries
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Filing: 1947-09-27
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Granted: 1950-01-24
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Expires: 1967-09-27
Abstract
No abstract record available.
Inventors
- 👤 Cannon Earl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:03
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; G; G01; G01N; G01N3/00; G01N3/08; G01N3/10; G01N3/12; G05; G05D; G05D16/00; G05D16/20; G05D16/2093; G05D16/2097; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20538; F15B2211/20576; F15B2211/30; F15B2211/305; F15B2211/30505; F15B2211/40; F15B2211/405; F15B2211/40515; F15B2211/41; F15B2211/411; F15B2211/415; F15B2211/41572; F15B2211/42; F15B2211/426; F15B2211/45; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50536; F15B2211/515; F15B2211/5151; F15B2211/52; F15B2211/526; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7053; F15B2211/7057; F15B2211/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |