US3202846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric crystal element
Assignee: Individual
•
Filing: 1963-04-03
•
Granted: 1965-08-24
•
Expires: 1983-04-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur D Ballato
- 👤 Bechmann Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:17
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/02007; H03H9/02015; H03H9/02023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A PIEZOELECTRIC QUARTZ CRYSTAL ELEMENT FOR EXCITING THE TWO THICKNESS SHEAR MODES, SAID ELEMENT BEING CUT FROM THE MOTHER QUARTZ AT AN ANGLE CENTERED AT SUBSTANTIALLY -23*50'' FROM THE Z AXIS, THE AXIS OF ROTATION BEING THE X AXIS AND HAVING A RANGE -12* TO -34*.
Claim 2
Dependent Claim
46 words
A PIEZOELECTRIC QUARTZ CRYSTAL ELEMENT FOR EXCITING THE TWO THICKNESS SHEAR MODES, SAID ELEMENT BEING CUT FROM THE MOTHER QUARTZ AT AN ANGLE CENTERED AT SUBSTANTIALLY -23*50'' FROM THE Z AXIS, THE AXIS OF ROTATION BEING THE X AXIS AND HAVING A RANGE -12* TO -34*.
References Cited (Backward Citations)
US2886787A
Cited
US3072806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |