US2742370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified barium titanate ceramic materials
Assignee: RCA Corp
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Filing: 1953-06-17
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Granted: 1956-04-17
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Expires: 1973-06-17
Abstract
No abstract record available.
Inventors
- 👤 Wainer Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:56
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/465; C04B35/468; C04B35/4682
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A VITREOUS CERAMIC MATERIAL COMPRISING BARIUM TITANATE AND A SUBSTANCE SELECTED FROM THE CLASS CONSISTING OF CADMIUM COLUMBATES AND TANTALATES, THE PERCENTAGE BY WEIGHT OF SAID CADMIUM COMPOUNDS BEING WITHIN THE RANGE OF ABOUT 0:5 TO ABOUT 20.
Claim 2
Dependent Claim
38 words
A VITREOUS CERAMIC MATERIAL COMPRISING BARIUM TITANATE AND A SUBSTANCE SELECTED FROM THE CLASS CONSISTING OF CADMIUM COLUMBATES AND TANTALATES, THE PERCENTAGE BY WEIGHT OF SAID CADMIUM COMPOUNDS BEING WITHIN THE RANGE OF ABOUT 0:5 TO ABOUT 20.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |