US2467000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum blow head
Assignee: S & Z Manufacturing Co Inc
•
Filing: 1945-03-02
•
Granted: 1949-04-12
•
Expires: 1965-03-02
Abstract
No abstract record available.
Inventors
- 👤 Otto H Samuelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:50
CPC Classifications
C; C03; C03B; C03B9/00; C03B9/30; C03B9/36; C03B9/3663; C03B9/3672; C03B9/3627; C03B9/3636
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US417176A
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US1577131A
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US1177613A
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FR595709A
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US1586072A
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US1894100A
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US2071295A
Cited
US1956203A
Cited
US1955765A
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US2282848A
Cited
US2382028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-11 | 1952-10-11 | 1953-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-11 | 1956-10-11 | 1957-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-11 | 1960-10-11 | 1961-04-12 | $7700.00 | Window Closed / Lapsed |