US3343044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch apparatus employing coated piezoelectric crystal
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1964-06-01
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Granted: 1967-09-19
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Expires: 1984-06-01
Abstract
No abstract record available.
Inventors
- 👤 Jr William H King
- 👤 James A Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:25
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/02; G01N29/036; G08; G08B; G08B17/00; G08B17/10; G08B17/117; G08B21/00; G08B21/18; G08B21/182; H; H03; H03B; H03B5/00; H03B5/30; H03B5/32; H03B5/36; G01N2291/00; G01N2291/02; G01N2291/025; G01N2291/0256
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
AN OFF-ON SWITCH APPARATUS RESPONSIVE TO A FLUID MATERIAL COMPRISING IN COMBINATION ELECTRONIC CIRCUIT OSCILLATING MEANS HAVING AS A CONTROL ELEMENT THEREOF A PIEZOELECTRIC CRYSTAL HAVING A COATING THEREON, SAID COATING BEING SELECTED FROM THE GROUP CONSISTING OF LITHIUM CHLORIDE, CALCIUM CHLORIDE, LIBR, LIL, LINO3, CA(NO3)2, AND COMBINATIONS THEREOF AND SAID COATING BEING ADAPTED SO AS TO BE CAPABLE OF INTERACTING WITH AT LEAST ONE COM-
Claim 2
Dependent Claim
66 words
AN OFF-ON SWITCH APPARATUS RESPONSIVE TO A FLUID MATERIAL COMPRISING IN COMBINATION ELECTRONIC CIRCUIT OSCILLATING MEANS HAVING AS A CONTROL ELEMENT THEREOF A PIEZOELECTRIC CRYSTAL HAVING A COATING THEREON, SAID COATING BEING SELECTED FROM THE GROUP CONSISTING OF LITHIUM CHLORIDE, CALCIUM CHLORIDE, LIBR, LIL, LINO3, CA(NO3)2, AND COMBINATIONS THEREOF AND SAID COATING BEING ADAPTED SO AS TO BE CAPABLE OF INTERACTING WITH AT LEAST ONE COM-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |