US3104336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow conical electromechanical transducer for use in air
Assignee: Individual
•
Filing: 1962-01-03
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Granted: 1963-09-17
•
Expires: 1982-01-03
Abstract
No abstract record available.
Inventors
- 👤 Wilbur T Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:22
CPC Classifications
H; H04; H04R; H04R17/00; B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0644; Y; Y10; Y10S; Y10S116/00; Y10S116/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
AN IMPROVED ELECTROMECHANICAL TRANSDUCER COMPRISING: A HOLLOW SUBSTANTIALLY RIGID NONCONDUCTIVE CONE HAVING INNER AND OUTER CONICAL SURFACES WHICH ARE EACH COATED WITH THIN CONDUCTIVE FILMS SPACED APART AT THE BASE OF SAID CONE, THE INWARDLY DIRECTED SURFACE OF THE CONDUCTIVE FILM ON THE INNER CONICAL SURFACE AND THE OUTWARDLY DIRECTED SURFACE OF THE FILM ON THE OUTER CONICAL SURFACE BEING FREE OF COVERING AND THE VOLUME DEFINED BY THE INNER SURFACE OF THE INNER CONICAL FILM BEING SUBSTANTIALLY FREE OF SOLID MATTER, SAID CONE BEING OF A MATERIAL OF THE TYPE WHEREIN STRAIN IN THE ALTITUDE AND CIRCUMFERENTIAL DIMENSIONS OF THE CONE IS ACCOMPANIED BY CORRESPONDING VOLTAGE CHANGE BETWEEN SAID CONDUCTIVE FILMS AND WHEREIN CHANGE IN VOLTAGE APPLIED BETWEEN SAID CONDUCTIVE FILMS IS ACCOMPANIED BY STRAIN IN THE ALTITUDE
Claim 2
Dependent Claim
129 words
AN IMPROVED ELECTROMECHANICAL TRANSDUCER COMPRISING: A HOLLOW SUBSTANTIALLY RIGID NONCONDUCTIVE CONE HAVING INNER AND OUTER CONICAL SURFACES WHICH ARE EACH COATED WITH THIN CONDUCTIVE FILMS SPACED APART AT THE BASE OF SAID CONE, THE INWARDLY DIRECTED SURFACE OF THE CONDUCTIVE FILM ON THE INNER CONICAL SURFACE AND THE OUTWARDLY DIRECTED SURFACE OF THE FILM ON THE OUTER CONICAL SURFACE BEING FREE OF COVERING AND THE VOLUME DEFINED BY THE INNER SURFACE OF THE INNER CONICAL FILM BEING SUBSTANTIALLY FREE OF SOLID MATTER, SAID CONE BEING OF A MATERIAL OF THE TYPE WHEREIN STRAIN IN THE ALTITUDE AND CIRCUMFERENTIAL DIMENSIONS OF THE CONE IS ACCOMPANIED BY CORRESPONDING VOLTAGE CHANGE BETWEEN SAID CONDUCTIVE FILMS AND WHEREIN CHANGE IN VOLTAGE APPLIED BETWEEN SAID CONDUCTIVE FILMS IS ACCOMPANIED BY STRAIN IN THE ALTITUDE
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) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |