US2723916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal titanate composition
Assignee: NL Industries Inc
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Filing: 1954-02-08
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Granted: 1955-11-15
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Expires: 1974-02-08
Abstract
No abstract record available.
Inventors
- 👤 Langtry E Lynd
- 👤 Merker Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:51
CPC Classifications
C; C30; C30B; C30B11/00; C30B11/04; C30B11/08; C30B11/10; Y; Y10; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024; Y10T117/1028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
MONOCRYSTALLINE TETRAGONAL TITANATE COMPOSITION OF COMMERCIALLY USABLE SIZE CONSISTING ESSENTIALLY OF BARIUM TITANATE AND FROM ABOUT 1% TO ABOUT 10% BY WEIGHT OF COMPOUND SELECTED FROM THE GROUP CONSISTING OF OXIDIC COMPOUND OF STRONTIUM AND OXIDIC COMPOUND OF CALCIUM CALCULATED AS THE METAL OXIDE, SAID COMPOSITION CHARACTERIZED BY A CLEAR UNIFORM APPEARANCE AND A HIGH INDEX OF REFRACTION.
Claim 2
Dependent Claim
58 words
MONOCRYSTALLINE TETRAGONAL TITANATE COMPOSITION OF COMMERCIALLY USABLE SIZE CONSISTING ESSENTIALLY OF BARIUM TITANATE AND FROM ABOUT 1% TO ABOUT 10% BY WEIGHT OF COMPOUND SELECTED FROM THE GROUP CONSISTING OF OXIDIC COMPOUND OF STRONTIUM AND OXIDIC COMPOUND OF CALCIUM CALCULATED AS THE METAL OXIDE, SAID COMPOSITION CHARACTERIZED BY A CLEAR UNIFORM APPEARANCE AND A HIGH INDEX OF REFRACTION.
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) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |