US3275015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tuning fork oscillator
Assignee: International Business Machines Corp
•
Filing: 1963-10-29
•
Granted: 1966-09-27
•
Expires: 1983-10-29
Abstract
No abstract record available.
Inventors
- 👤 Johann H Meier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:55
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/22; F15C1/02; F15C1/04; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2202; Y10T137/2207; Y10T137/2278
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A FLUID PRESSURE OSCILLATOR COMPRISING, (A) A TUNING FORK HAVING A PREDETERMINED NATURAL FREQUENCY, (B) MEANS FOR APPLYING FLUID FROM A SOURCE OF FLUID PRESSURE DIRECTLY TO THE TUNING FORK EXCITING THE TUNING FORK, AND
Claim 2
Dependent Claim
35 words
A FLUID PRESSURE OSCILLATOR COMPRISING, (A) A TUNING FORK HAVING A PREDETERMINED NATURAL FREQUENCY, (B) MEANS FOR APPLYING FLUID FROM A SOURCE OF FLUID PRESSURE DIRECTLY TO THE TUNING FORK EXCITING THE TUNING FORK, AND
References Cited (Backward Citations)
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US3124160A
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US2152177A
Cited
US3057375A
Cited
US3016066A
Cited
US3117593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |