US3020360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pronunciary
Assignee: General Dynamics Corp
•
Filing: 1959-01-29
•
Granted: 1962-02-06
•
Expires: 1979-01-29
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Gratian
- 👤 Richard J O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:58
CPC Classifications
G; G09; G09B; G09B5/00; G09B5/06; G09B5/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1920259A
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US2322489A
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GB589823A
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US2422143A
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US2650097A
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US2637785A
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US2598947A
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US2782043A
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US2703714A
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US2761351A
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US2945307A
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US2900142A
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US2877012A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |