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US3407272A
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US
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Photographic sound system for eliminating film blemish noise
Assignee: INSTRUMENTS CORP OF AMERICA
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Filing: 1966-09-07
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Granted: 1968-10-22
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Expires: 1986-09-07
Abstract
No abstract record available.
Inventors
- 👤 Edward C Barocela
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:00
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B27/73; G11; G11B; G11B7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2527463A
Cited
US3281151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |