US3440363A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock-resistant microphone
Assignee: AT&T Inc
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Filing: 1965-11-26
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Granted: 1969-04-22
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Expires: 1985-11-26
Abstract
No abstract record available.
Inventors
- 👤 Harry J Boll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:03
CPC Classifications
H; H04; H04R; H04R21/00; H04R21/02; H04R1/00; H04R1/08; H04R1/083; H04R17/00; H04R17/02; H04R23/00; H04R23/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A SHOCK-RESISTANT ELECTROACOUSTIC TRANSUCER COMPRISING, A FIRST MEANS FOR TRANSLATING SOUND ENERGY TO MECHANICAL ENERGY, SECOND MEANS FOR TRANSLATING MECHANICAL ENERGY TO ELECTRICAL ENERGY, THIRD MEANS FOR TRANSMITTING FORCE FROM SAID FIRST TO SECOND MEANS INCLUDING A BAR MEMBER HAVING AN UNSUPPORTED FIRST END AND A SUPPORTED SECOND END, FURTHER INCLUDING COUPLING MEANS CONNECTING SAID FIRST MEANS TO SAID FIRST END FOR TRANSMITTING FORCE THEREBETWEEN. AND SUPPORT MEANS FOR SAID SECOND END WHICH IS FIXED WHEN THE FORCE TRANSMITTED IN JUST BELOW THAT WHICH WOULD DAMAGE SAID SECOND MENS, AND WHICH IS RESILIENT WHEN THE FORCE IS GREATER.
Claim 2
Dependent Claim
98 words
A SHOCK-RESISTANT ELECTROACOUSTIC TRANSUCER COMPRISING, A FIRST MEANS FOR TRANSLATING SOUND ENERGY TO MECHANICAL ENERGY, SECOND MEANS FOR TRANSLATING MECHANICAL ENERGY TO ELECTRICAL ENERGY, THIRD MEANS FOR TRANSMITTING FORCE FROM SAID FIRST TO SECOND MEANS INCLUDING A BAR MEMBER HAVING AN UNSUPPORTED FIRST END AND A SUPPORTED SECOND END, FURTHER INCLUDING COUPLING MEANS CONNECTING SAID FIRST MEANS TO SAID FIRST END FOR TRANSMITTING FORCE THEREBETWEEN. AND SUPPORT MEANS FOR SAID SECOND END WHICH IS FIXED WHEN THE FORCE TRANSMITTED IN JUST BELOW THAT WHICH WOULD DAMAGE SAID SECOND MENS, AND WHICH IS RESILIENT WHEN THE FORCE IS GREATER.
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) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |