US2575269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
War game apparatus
Assignee: Individual
•
Filing: 1949-02-28
•
Granted: 1951-11-13
•
Expires: 1969-02-28
Abstract
No abstract record available.
Inventors
- 👤 Corliss W Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:47
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00003; A63F3/00075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE369283C
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US1594832A
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US1680609A
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US1755315A
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US1942291A
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US2053598A
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US2149363A
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US2058079A
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US2100420A
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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) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |