US3511503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amusement device with changeable support means
Assignee: MICHAEL A VOLPE
•
Filing: 1968-05-31
•
Granted: 1970-05-12
•
Expires: 1988-05-31
Abstract
No abstract record available.
Inventors
- 👤 Michael A Volpe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:59
CPC Classifications
A; A63; A63F; A63F9/00; A63F9/02; A63F9/0204; Y; Y10; Y10S; Y10S297/00; Y10S297/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB237015A
Cited
US2072682A
Cited
US1948995A
Cited
US2930430A
Cited
US3146028A
Cited
US3233899A
Cited
US3378260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |