US3176086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer field structure assembly
Assignee: Individual
•
Filing: 1964-03-27
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Granted: 1965-03-30
•
Expires: 1984-03-27
Abstract
No abstract record available.
Inventors
- 👤 Aldo L Coen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:51
CPC Classifications
H; H04; H04R; H04R9/00; H04R9/02; H04R9/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
AN ELECTROMAGNETIC TRANSDUCER WHICH INCLUDES A SHEET METAL BASKET STRUCTURE HAVING A CENTRAL ANNULAR FLANGE FORMING A CIRCULAR OPENING, AN OPEN TOP CUP MEMBER OF FERROUS METAL HAVING AN INTERIOR COAXIAL MAGNET THEREIN, AN ANNULAR FERROUS METAL RING IN THE CUP MEMBER DISPOSED IN THE UPPER END THEREOF WITH THE RING SPACED FROM THE MAGNET TO PROVIDE AN ANNULAR GAP, SAID CUP MEMBER BEING FITTED IN SAID CIRCULAR OPENING AND SAID CUP MEMBER HAVING MEANS HOLDING SAID RING IN ASSEMBLY WITHIN SAID CUP MEMBER WHILE SIMULTANEOUSLY HOLDING SAID CUP MEMBER IN ASSEMBLY UPON SAID ANNULAR FLANGE.
Claim 2
Dependent Claim
96 words
AN ELECTROMAGNETIC TRANSDUCER WHICH INCLUDES A SHEET METAL BASKET STRUCTURE HAVING A CENTRAL ANNULAR FLANGE FORMING A CIRCULAR OPENING, AN OPEN TOP CUP MEMBER OF FERROUS METAL HAVING AN INTERIOR COAXIAL MAGNET THEREIN, AN ANNULAR FERROUS METAL RING IN THE CUP MEMBER DISPOSED IN THE UPPER END THEREOF WITH THE RING SPACED FROM THE MAGNET TO PROVIDE AN ANNULAR GAP, SAID CUP MEMBER BEING FITTED IN SAID CIRCULAR OPENING AND SAID CUP MEMBER HAVING MEANS HOLDING SAID RING IN ASSEMBLY WITHIN SAID CUP MEMBER WHILE SIMULTANEOUSLY HOLDING SAID CUP MEMBER IN ASSEMBLY UPON SAID ANNULAR FLANGE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |