Patent US3308650A successfully refreshed from Google Patents.
US3308650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic spectrometer
Assignee: Individual
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Filing: 1963-05-17
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Granted: 1967-03-14
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Expires: 1983-05-17
Abstract
No abstract record available.
Inventors
- 👤 John V Fitzgerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:34
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/32; G01N3/38; G01N29/00; G01N29/04; G01N29/12; G01N2203/00; G01N2203/0014; G01N2203/0023; G01N2203/02; G01N2203/022; G01N2203/0222
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
AN INTEGRATED AUTOMATIC SYSTEM FOR SUBJECTING A SOLID SPECIMEN TO CONTROLLED VIBRATORY AND THERMAL ENERGY AND FOR INDICATING THE RESPONSE THERETO COMPRISING A THERMALLY CONTROLLED ENCLOSURE ADAPTED TO CONTAIN SAID SPECIMEN AND HAVING THERMAL ELECTRIC MEANS FOR MAINTAINING ADJUSTABLE PREDETERMINED TEMPERATURES THEREIN, TRANSDUCER MEANS RESPONSIVE TO THERMAL CONDITIONS OF SAID ENCLOSURE, VARIABLE FREQUENCY SPECIMEN EXCITATION MEANS FOR IMPARTING RESONANCE VIBRATION TO SAID SPECIMEN, SENSING MEANS RESPONSIVE TO THE VIBRAWTION OF SAID SPECIFMEN, FREQUENCY RESPONSIVE SIGNALLING MEANS RESPONSIVE TO SAID EXCITATION MEANS, AND PLURAL-VARIABLE RESPONSE INDICATING MEANS HAVING ONE CHANNEL CONNECTED TO BE RESPONSIVE TO SAID SENSING MEANS AND ANOTHER CHANNEL CONNECTED TO BE SELECTIVELY RESPONSIVE TO SAID TEMPERATURE TRANSDUCER MEANS AND TO SAID FREQUENCY RESPONSIVE SIGNALLING MEANS.
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |