Patent US3079472A successfully refreshed from Google Patents.
US3079472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic field structure for transducers and method of constructing same
Assignee: RCA Corp
•
Filing: 1960-10-06
•
Granted: 1963-02-26
•
Expires: 1980-10-06
Abstract
No abstract record available.
Inventors
- 👤 Anthony A Sariti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:55
CPC Classifications
H; H04; H04R; H04R9/00; H04R9/02; H04R9/025; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A MAGNETIC FIELD STRUCTURE FOR AN ELECTROMAGNETIC TRANSDUCER COMPRISING A PAIR OF SPACED MAGNETIC PLATES EACH HAVING AN OPENING THEREIN, A MAGNETIC POLE PIECE SECURED WITHIN ONE OF SAID OPENINGS AND EXTENDING INTO THE OTHER OF SAID OPENINGS IN RADIALLY SPACED RELATION TO THE PERIPHERY OF SAID OPENING TO PROVIDE AN AIR GAP, MAGNETIC MEANS DISPOSED BETWEEN AND IN ENGAGEMENT WITH SAID PLATES, AND A CLAMPING MEMBER EXTENDING BETWEEN
Claim 2
Dependent Claim
69 words
A MAGNETIC FIELD STRUCTURE FOR AN ELECTROMAGNETIC TRANSDUCER COMPRISING A PAIR OF SPACED MAGNETIC PLATES EACH HAVING AN OPENING THEREIN, A MAGNETIC POLE PIECE SECURED WITHIN ONE OF SAID OPENINGS AND EXTENDING INTO THE OTHER OF SAID OPENINGS IN RADIALLY SPACED RELATION TO THE PERIPHERY OF SAID OPENING TO PROVIDE AN AIR GAP, MAGNETIC MEANS DISPOSED BETWEEN AND IN ENGAGEMENT WITH SAID PLATES, AND A CLAMPING MEMBER EXTENDING BETWEEN
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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |