US3427028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Word building game apparatus with two-sided playing board
Assignee: THOMAS C ABRAHAMSEN
•
Filing: 1966-03-01
•
Granted: 1969-02-11
•
Expires: 1986-03-01
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Abrahamsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:30
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/04; A63F3/0423; A63F3/00173; A63F3/00261; A63F2003/00264; A63F2003/00268; A63F2003/00274; A63F2003/00406; A63F2003/0041; A63F3/00574
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1728805A
Cited
US2100421A
Cited
US2055159A
Cited
US2902776A
Cited
US3178185A
Cited
US3165318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |