US2677663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manganite composition
Assignee: Hartford National Bank and Trust Co
•
Filing: 1950-02-04
•
Granted: 1954-05-04
•
Expires: 1970-02-04
Abstract
No abstract record available.
Inventors
- 👤 Jonker Gerard Heinrich
- 👤 Jan Heinrik Van Santen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:23
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/016; B; B01; B01J; B01J23/00; B01J23/16; B01J23/32; B01J23/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A NEW COMPOSITON OF MATTER CONSISTING OF ESSENTIALLY HOMOGENEOUS MIXED CRYSTALS OF APPROXIMATELY 70 MOL. PER CENT OF LANTHANUM MANGANITE, APPROXIMATELY 15 MOL. PER CENT OF STRONTIUM MANGANITE AND APPROXIMATELY 15 MOL. PER CENT OF BARIUM MANGANITE.
Claim 2
Dependent Claim
37 words
A NEW COMPOSITON OF MATTER CONSISTING OF ESSENTIALLY HOMOGENEOUS MIXED CRYSTALS OF APPROXIMATELY 70 MOL. PER CENT OF LANTHANUM MANGANITE, APPROXIMATELY 15 MOL. PER CENT OF STRONTIUM MANGANITE AND APPROXIMATELY 15 MOL. PER CENT OF BARIUM MANGANITE.
References Cited (Backward Citations)
US1840789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |