US2697047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of providing a spot of silver on a piezoelectric crystal
Assignee: AT&T Inc
•
Filing: 1950-09-14
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Granted: 1954-12-14
•
Expires: 1970-09-14
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Ziegler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:32
CPC Classifications
H; H03; H03H; H03H3/00; H03H3/007; H03H3/02; Y; Y10; Y10T; Y10T29/00; Y10T29/42; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24917; Y10T428/24926
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A METHOD OF PROVIDING A SURFACE OF SOLDERABLE MATERIAL ON A PIEZOELECTRIC CRYSTAL COMPRISING THOROUGHLY MIXING A SILVER PASTE SLOWLY ENOUGH TO AVOID TURBULENCE, IMMEDIATELY APPLYING A SPOT OF THE THOROUGHLY MIXED SILVER PASTE TO THE SURFACE OF A CRYSTAL, SLOWLY HEATING
Claim 2
Independent Claim
42 words
A METHOD OF PROVIDING A SURFACE OF SOLDERABLE MATERIAL ON A PIEZOELECTRIC CRYSTAL COMPRISING THOROUGHLY MIXING A SILVER PASTE SLOWLY ENOUGH TO AVOID TURBULENCE, IMMEDIATELY APPLYING A SPOT OF THE THOROUGHLY MIXED SILVER PASTE TO THE SURFACE OF A CRYSTAL, SLOWLY HEATING
References Cited (Backward Citations)
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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) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |