US3453561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices utilizing crystals of pb3mgnb2o9
Assignee: AT&T Inc
•
Filing: 1966-08-08
•
Granted: 1969-07-01
•
Expires: 1986-08-08
Abstract
No abstract record available.
Inventors
- 👤 William A Bonner
- 👤 Joseph E Geusic
- 👤 Le Grand G Van Uitert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:54
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/0009; G02F1/0018
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
DEVICE COMPRISING A BODY CONSISTING ESSENTIALLY OF PB3MGNB2O9 CONTAINING AS A PARTIAL REPLACEMENT FOR MAGNESIUM FROM ZERO ATOM PERCENT TO 50 ATOM PERCENT OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF ZINC, SCANDIUM, NICKEL, IRON, COBALT, AND MANGANESE, TOGETHER WITH FIRST MEANS FOR APPLYING AN ELECTRIC FIELD ACROSS AT LEAST A PORTION OF THE SAID BODY AN SECOND MEANS FOR
Claim 2
Dependent Claim
61 words
DEVICE COMPRISING A BODY CONSISTING ESSENTIALLY OF PB3MGNB2O9 CONTAINING AS A PARTIAL REPLACEMENT FOR MAGNESIUM FROM ZERO ATOM PERCENT TO 50 ATOM PERCENT OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF ZINC, SCANDIUM, NICKEL, IRON, COBALT, AND MANGANESE, TOGETHER WITH FIRST MEANS FOR APPLYING AN ELECTRIC FIELD ACROSS AT LEAST A PORTION OF THE SAID BODY AN SECOND MEANS FOR
References Cited (Backward Citations)
US3290619A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |