US3360072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound reproducing apparatus
Assignee: Individual
•
Filing: 1966-04-11
•
Granted: 1967-12-26
•
Expires: 1986-04-11
Abstract
No abstract record available.
Inventors
- 👤 Carlsson Stig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:32
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/32; H04R1/323
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
SOUND REPRODUCING APPARATUS COMPRISING A CASING HAVING A FRONT END AND A REAR END, HIGH FREQUENCY RADIATING MEANS COMPRISING AT LEAST ONE LOUD SPEAKER MECHANISM MOUNTED ON SAID CASING, SAID HIGH FREQUENCY RADIATING MEANS HAVING A PLURALITY OF MAIN DIRECTIONS OF RADIATION ORIENTED IN WIDELY DIVERGING DIRECTIONS INCLUDING A FORWARDLY DIRECTION AND A REARWARDLY DIRECTION, MID FREQUENCY RADIATING MEANS RADIATING APPROXIMATELY THE 400 TO 2000 C.P.S. RANGE COMPRISING A LOUD SPEAKER MECHANISM MOUNTED ON THE TOP OF SAID CASING AND ORIENTED SUBSTANTIALLY UPWARDLY AND HAVING ITS CENTER OF RADIATION LOCATED CLOSER TO SAID REAR END OF THE CASING THAN THE REARWARDLY ORIENTED RADIATING PORTION OF SAID HIGH FREQUENCY RADIATING MEANS.
Claim 2
Dependent Claim
110 words
SOUND REPRODUCING APPARATUS COMPRISING A CASING HAVING A FRONT END AND A REAR END, HIGH FREQUENCY RADIATING MEANS COMPRISING AT LEAST ONE LOUD SPEAKER MECHANISM MOUNTED ON SAID CASING, SAID HIGH FREQUENCY RADIATING MEANS HAVING A PLURALITY OF MAIN DIRECTIONS OF RADIATION ORIENTED IN WIDELY DIVERGING DIRECTIONS INCLUDING A FORWARDLY DIRECTION AND A REARWARDLY DIRECTION, MID FREQUENCY RADIATING MEANS RADIATING APPROXIMATELY THE 400 TO 2000 C.P.S. RANGE COMPRISING A LOUD SPEAKER MECHANISM MOUNTED ON THE TOP OF SAID CASING AND ORIENTED SUBSTANTIALLY UPWARDLY AND HAVING ITS CENTER OF RADIATION LOCATED CLOSER TO SAID REAR END OF THE CASING THAN THE REARWARDLY ORIENTED RADIATING PORTION OF SAID HIGH FREQUENCY RADIATING MEANS.
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Cited
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Cited
US3157247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |