Patent US3411236A successfully refreshed from Google Patents.
US3411236A
Expired / Lapsed
US
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Motor sound unit
Assignee: Louis Marx and Co Inc
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Filing: 1966-03-30
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Granted: 1968-11-19
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Expires: 1986-03-30
Abstract
No abstract record available.
Inventors
- 👤 Eugene W Fileger
- 👤 Bennett John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:56
CPC Classifications
A; A63; A63H; A63H17/00; A63H17/26; A63H17/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |