US3009263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educational device
Assignee: General Atronics Corp
•
Filing: 1959-01-08
•
Granted: 1961-11-21
•
Expires: 1979-01-08
Abstract
No abstract record available.
Inventors
- 👤 Blain Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:32
CPC Classifications
G; G09; G09B; G09B3/00; G09B3/06; G09B3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1670480A
Cited
US647218A
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US1749226A
Cited
FR758904A
Cited
US2137447A
Cited
US2340251A
Cited
US2524704A
Cited
US2799955A
Cited
US2911741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |