Patent US2878801A successfully refreshed from Google Patents.
US2878801A
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US
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Toy catapult device
Assignee: HARRIS
•
Filing: 1955-06-20
•
Granted: 1959-03-24
•
Expires: 1975-06-20
Abstract
No abstract record available.
Inventors
- 👤 Paul E Patchin
- 👤 Albert F Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:45
CPC Classifications
F; F41; F41B; F41B3/00; F41B3/02; F41B3/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2421220A
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US2623748A
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US2520460A
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GB641504A
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US2594745A
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US2481724A
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US2634982A
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US2657057A
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US2658495A
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US2723124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |