US3128397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fork-shaped quartz oscillator for audible frequency
Assignee: KINSEKISHA KENKYUJO KK
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Filing: 1961-06-14
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Granted: 1964-04-07
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Expires: 1981-06-14
Abstract
No abstract record available.
Inventors
- 👤 Shinada Toshio
- 👤 Oinuma Susumu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:23
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/15; H03H9/21; H03H9/215; G; G04; G04F; G04F5/00; G04F5/04; G04F5/06; G04F5/063; H03B; H03B5/00; H03B5/30; H03B5/32; H03B5/323; H03B5/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A FORK-SHAPED QUARTZ OSCILLATOR FOR AUDIBLE FREQUENCY COMPRISING AN OBLONG SLAB HAVING IN ITS LENGTHWISE DIRECTION AN INCISION OF A PRESCRIBED WIDTH IN THE CENTRAL PART THEREOF CHARACTERIZED IN THAT THE AZIMUTH OF CUT (A) OF THE PLANE X-Y'' DEFINED BY THE PRINCIPAL FACE THE OSCILLATOR CRYSTAL WITH RESPECT TO THE PLANE X-Y OF A MOTHER CRYSTAL HAVING CRYSTAL AXES X, Y, AND Z WITH THE X AXIS AS A PIVOT IS IN THE RANGE OF -5* TO + 10*, AND THE SIZE IS SUCH THAT THE RATIO OF THE WIDTH W OF EACH OF THE LEGS, WHICH ARE THE OSCILLATION PARTS, TO ITS LENGTH L IS FROM 0.02 TO 0.09.
Claim 2
Dependent Claim
111 words
A FORK-SHAPED QUARTZ OSCILLATOR FOR AUDIBLE FREQUENCY COMPRISING AN OBLONG SLAB HAVING IN ITS LENGTHWISE DIRECTION AN INCISION OF A PRESCRIBED WIDTH IN THE CENTRAL PART THEREOF CHARACTERIZED IN THAT THE AZIMUTH OF CUT (A) OF THE PLANE X-Y'' DEFINED BY THE PRINCIPAL FACE THE OSCILLATOR CRYSTAL WITH RESPECT TO THE PLANE X-Y OF A MOTHER CRYSTAL HAVING CRYSTAL AXES X, Y, AND Z WITH THE X AXIS AS A PIVOT IS IN THE RANGE OF -5* TO + 10*, AND THE SIZE IS SUCH THAT THE RATIO OF THE WIDTH W OF EACH OF THE LEGS, WHICH ARE THE OSCILLATION PARTS, TO ITS LENGTH L IS FROM 0.02 TO 0.09.
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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |