Patent US2579408A successfully refreshed from Google Patents.
US2579408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air blow gun valve
Assignee: HOEVE BROTHERS
•
Filing: 1945-11-09
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Granted: 1951-12-18
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Expires: 1965-11-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Cornelius D Vreeland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:41
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/58; B; B05; B05B; B05B1/00; B05B1/005; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265
Claims Analysis
Total Claims: 0
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US1839413A
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US2001487A
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GB438467A
Cited
US2327574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |