Patent US3031688A successfully refreshed from Google Patents.
US3031688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible amusement and recreation device
Assignee: Individual
•
Filing: 1959-11-16
•
Granted: 1962-05-01
•
Expires: 1979-11-16
Abstract
No abstract record available.
Inventors
- 👤 Southwood Dewey Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:48
CPC Classifications
A; A63; A63B; A63B5/00; A63B5/11; A63B21/00; A63B21/02; A63B21/055; A63B21/0552
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US367362A
Cited
US663856A
Cited
US952871A
Cited
US2324970A
Cited
US2580942A
Cited
US2793375A
Cited
US2749956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-30 | 1965-10-30 | 1966-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-30 | 1969-10-30 | 1970-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-30 | 1973-10-30 | 1974-05-01 | $7700.00 | Window Closed / Lapsed |