US2720712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simulator for battle maneuvers
Assignee: Individual
•
Filing: 1945-11-30
•
Granted: 1955-10-18
•
Expires: 1965-11-30
Abstract
No abstract record available.
Inventors
- 👤 Jr George A Brettell
- 👤 Pierce Firth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:31
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/003; F; F41; F41G; F41G3/00; F41G3/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US729491A
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US1006292A
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US973962A
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US1127725A
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US1172628A
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US1174547A
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US1579880A
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US1869275A
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US2136213A
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US2214050A
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US2230149A
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US2406574A
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US2389451A
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US2366554A
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US2491308A
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US2420633A
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US2392142A
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US2471315A
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US2478250A
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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) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |