US3303133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing dense ceramic of lead zirconate-titanate
Assignee: Honeywell Inc
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Filing: 1964-02-06
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Granted: 1967-02-07
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Expires: 1984-02-06
Abstract
No abstract record available.
Inventors
- 👤 William R Bratschun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:43
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/50; C04B35/01; C04B35/46; C04B35/48; C04B35/51
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
THE METHOD OF PRODUCING A DENSE CERAMIC OF LEAD ZIRCONATE-LEAD TITANATE WHICH COMPRISES PREPARING A MIXTURE OF LEAD LZIRCONATE-LEAD TITANATE WHEREIN THE ATOMIC RATIO OF ZR TO TI IS FROM 90:10 TO 40:60, FORMING THE MIXTURE INTO THE DESIRED SHAPE, PLACING THE MIXTURE INTO A CHAMBER, INTRODUCING A QUANTITY OF CADMIUM OXIDE SEPARATE FROM SAID SHAPED MIXTURE INTO SAID CHAMBER, AND HEATING THE CHAMBER TO A TEMPERTURE IN EXCESS OF 980*C.
Claim 2
Independent Claim
71 words
THE METHOD OF PRODUCING A DENSE CERAMIC OF LEAD ZIRCONATE-LEAD TITANATE WHICH COMPRISES PREPARING A MIXTURE OF LEAD LZIRCONATE-LEAD TITANATE WHEREIN THE ATOMIC RATIO OF ZR TO TI IS FROM 90:10 TO 40:60, FORMING THE MIXTURE INTO THE DESIRED SHAPE, PLACING THE MIXTURE INTO A CHAMBER, INTRODUCING A QUANTITY OF CADMIUM OXIDE SEPARATE FROM SAID SHAPED MIXTURE INTO SAID CHAMBER, AND HEATING THE CHAMBER TO A TEMPERTURE IN EXCESS OF 980*C.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |