Patent US2987318A successfully refreshed from Google Patents.
US2987318A
Expired / Lapsed
US
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Three dimensional jig saw puzzle
Assignee: Individual
•
Filing: 1957-09-17
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Granted: 1961-06-06
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Expires: 1977-09-17
Abstract
No abstract record available.
Inventors
- 👤 Hammer Willie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:53
CPC Classifications
A; A63; A63F; A63F9/00; A63F9/06; A63F9/12; A63F3/00; A63F3/04; A63F3/0434; A63F2003/0439; A63F2003/0444; A63F9/001; A63F2009/0033; A63F2009/0035; A63F2009/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US610577A
Cited
US1071358A
Cited
US1409082A
Cited
US1573358A
Cited
US2153053A
Cited
US2759295A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |