US3483402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quartz crystals for piezoelectric resonators
Assignee: AT&T Inc
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Filing: 1968-02-26
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Granted: 1969-12-09
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Expires: 1988-02-26
Abstract
No abstract record available.
Inventors
- 👤 James J Royer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:51
CPC Classifications
G; G04; G04F; G04F5/00; G04F5/04; G04F5/06; G04F5/063; H; H03; H03H; H03H9/00; H03H9/02; H03H9/05; H03H9/09; H03H9/15; H03H9/17; H03H9/19
Claims Analysis
Total Claims: 0
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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) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |