US3095941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loud speaker construction
Assignee: FAUTHAL A HASSAN
•
Filing: 1957-05-09
•
Granted: 1963-07-02
•
Expires: 1977-05-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Hassan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:05
CPC Classifications
H; H04; H04R; H04R9/00; H04R9/06; H04R7/00; H04R7/16; H04R7/18; H04R7/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A LOUDSPEAKER COMPRISING A FRAME HAVING A FORWARD PERIPHERAL AND A REARWARD MEDIAL PORTION, A CONICAL DIAPHRAGM AND A LOUDSPEAKER COIL, THE APEX OF SAID DIAPHRAGM BEING CONNECTED TO SAID LOUDSPEAKER COIL, SAID DIAPHRAGM INCLUDING A PISTON PORTION AND A CONVOLUTION PORTION INTEGRAL THEREWITH, SAID CONVOLUTION PORTION INTEGALLY INCLUDING AN OUTWARDLY CONVEX RIGID EXTENDING FROM SAID PISTON PORTION AND AN OUTWARDLY CONCAVE TROUGH, THE OUTER EXTREMITY OF WHICH IS CONNECTED TO SAID FORWARD PERIPHERAL PORTION, THE LENGTH FROM THE EXTREMITY OF SAID PISTON PORTION TO THE APEX OF SAID RIGID BEING LESS THAN THE LENGTH FROM THE APEX OF SAID TROUGH TO SAID FORWARD PEERIPHERAL PORTION, AN INTEGRAL EXTENSION FROM SAID FORWARD PERIPHERAL PORTION, THE FORWARD FACE OF SAID EXTENSION LYING SUBSTANTIALLY IN A PLANE REARWARD OF THE PLANE IN WHICH LIES THE FORWARD FACE OF SAID PERIPHERAL PORTION.
Claim 2
Dependent Claim
139 words
A LOUDSPEAKER COMPRISING A FRAME HAVING A FORWARD PERIPHERAL AND A REARWARD MEDIAL PORTION, A CONICAL DIAPHRAGM AND A LOUDSPEAKER COIL, THE APEX OF SAID DIAPHRAGM BEING CONNECTED TO SAID LOUDSPEAKER COIL, SAID DIAPHRAGM INCLUDING A PISTON PORTION AND A CONVOLUTION PORTION INTEGRAL THEREWITH, SAID CONVOLUTION PORTION INTEGALLY INCLUDING AN OUTWARDLY CONVEX RIGID EXTENDING FROM SAID PISTON PORTION AND AN OUTWARDLY CONCAVE TROUGH, THE OUTER EXTREMITY OF WHICH IS CONNECTED TO SAID FORWARD PERIPHERAL PORTION, THE LENGTH FROM THE EXTREMITY OF SAID PISTON PORTION TO THE APEX OF SAID RIGID BEING LESS THAN THE LENGTH FROM THE APEX OF SAID TROUGH TO SAID FORWARD PEERIPHERAL PORTION, AN INTEGRAL EXTENSION FROM SAID FORWARD PERIPHERAL PORTION, THE FORWARD FACE OF SAID EXTENSION LYING SUBSTANTIALLY IN A PLANE REARWARD OF THE PLANE IN WHICH LIES THE FORWARD FACE OF SAID PERIPHERAL PORTION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |