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US2469004A
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Assignee: AMERICAN BLOWER Corp
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Filing: 1944-10-23
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Granted: 1949-05-03
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Expires: 1964-10-23
Abstract
No abstract record available.
Inventors
- 👤 John D Rosebrough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:50
CPC Classifications
B; B21; B21B; B21B37/00; B21B37/48; B21C; B21C47/00; B21C47/003; B65; B65H; B65H59/00; B65H59/38; B21B35/00; B21B2035/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1652299A
Cited
US1832906A
Cited
US2185498A
Cited
US2187667A
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US2164596A
Cited
US2164600A
Cited
US2343181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-02 | 1952-11-01 | 1953-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-02 | 1956-11-01 | 1957-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-02 | 1960-11-01 | 1961-05-03 | $7700.00 | Window Closed / Lapsed |