Patent US2442528A successfully refreshed from Google Patents.
US2442528A
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Rocket device
Assignee: Aerial Products Inc
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Filing: 1943-11-20
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Granted: 1948-06-01
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Expires: 1963-11-20
Abstract
No abstract record available.
Inventors
- 👤 John O Beattle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:32
CPC Classifications
F; F42; F42B; F42B4/00; F42B4/06; F42B4/10; F42B4/12; F42B12/00; F42B12/02; F42B12/36; F42B12/56; F42B12/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US79963A
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US302562A
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US826293A
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US1102653A
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US1299217A
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FR502678A
Cited
GB141187A
Cited
US1686117A
Cited
GB300217A
Cited
US1823390A
Cited
US2344957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-01 | 1951-12-01 | 1952-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-01 | 1955-12-01 | 1956-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-01 | 1959-12-01 | 1960-06-01 | $7700.00 | Window Closed / Lapsed |