US3185755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Musical device
Assignee: SCOPE ACQUISITION CORP A DE CORP
•
Filing: 1961-06-12
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Granted: 1965-05-25
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Expires: 1981-06-12
Abstract
No abstract record available.
Inventors
- 👤 Richard E Williams
- 👤 John S Gerig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:18
CPC Classifications
G; G10; G10H; G10H3/00; G10H3/12; G10H3/24; G10H3/26; Y; Y10; Y10S; Y10S84/00; Y10S84/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
33 words
IN A REVERBERTORY SYSTEM, A SOURCE OF A GAMUT OF SEMI-TONES OF THE MUSICAL SCALE, A PLURALITY OF STRETCHED STRINGS HAVING ONLY FUNDAMENTAL RESONANT FREQUENCIES SPACED APART BY APPROXIMATELY TWO OF SAID SEMI-TONES,
References Cited (Backward Citations)
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GB258946A
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US2001391A
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US2600870A
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US2535341A
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US2585661A
Cited
US2818760A
Cited
US3048072A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |