US3423609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quartz crystal temperature transducer
Assignee: HP Inc
•
Filing: 1964-01-30
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Granted: 1969-01-21
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Expires: 1984-01-30
Abstract
No abstract record available.
Inventors
- 👤 Donald L Hammond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:58
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/02007; H03H9/02015; H03H9/02023; G; G01; G01K; G01K7/00; G01K7/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A QUARTZ CRYSTAL PLATE HAVING AN ORIENTATION OF APPROXIMATELY (YXWL)+-11.166*+M120*/9.393* WHERE M IS AN INTEGER NOT GREATER THAN 3.
Claim 2
Dependent Claim
19 words
A QUARTZ CRYSTAL PLATE HAVING AN ORIENTATION OF APPROXIMATELY (YXWL)+-11.166*+M120*/9.393* WHERE M IS AN INTEGER NOT GREATER THAN 3.
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) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |