US3533627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three player chess game board
Assignee: Individual
•
Filing: 1966-11-10
•
Granted: 1970-10-13
•
Expires: 1986-11-10
Abstract
No abstract record available.
Inventors
- 👤 Gene Deffenbaugh
- 👤 David G Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:14
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00173; A63F3/00176
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL3585C
Cited
US259695A
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US384195A
Cited
GB189324644A
Cited
GB190203214A
Cited
GB190802902A
Cited
US1339013A
Cited
US1704819A
Cited
US3341205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |