Patent US3496391A successfully refreshed from Google Patents.
US3496391A
Expired / Lapsed
US
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Resonant device
Assignee: Individual
•
Filing: 1967-12-07
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Granted: 1970-02-17
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Expires: 1987-12-07
Abstract
No abstract record available.
Inventors
- 👤 Clarence Hunter Mcshan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:51
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/08; G04C3/10; G04C3/04; G04C3/06; G04C3/065; G04C3/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3123755A
Cited
US2950447A
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US2926313A
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FR1224395A
Cited
US3309590A
Cited
US3365635A
Cited
US3402301A
Cited
US3257794A
Cited
US3403312A
Cited
US3238431A
Cited
US3351788A
Cited
FR1482412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |