US2821922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket toy and launcher therefor
Assignee: Individual
•
Filing: 1953-08-24
•
Granted: 1958-02-04
•
Expires: 1973-08-24
Abstract
No abstract record available.
Inventors
- 👤 Lawrence W Brown
- 👤 Herbert D Brown
- 👤 Paul E Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:26
CPC Classifications
F; F42; F42B; F42B4/00; F42B4/06; F41; F41F; F41F3/00; F41F3/04; F41F3/0406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US53933A
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US334496A
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US499790A
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US534651A
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US1102653A
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GB139856A
Cited
US1558542A
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GB591500A
Cited
US2443299A
Cited
US2701984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |