US2877286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant energy shielding device
Assignee: Cs-13 Corp
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Filing: 1955-06-13
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Granted: 1959-03-10
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Expires: 1975-06-13
Abstract
No abstract record available.
Inventors
- 👤 Vance Glenn
- 👤 Glenn L Powers
- 👤 Paul W Stokesberry
- 👤 Myron H Colman
- 👤 Donald L Klipstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:55
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
SHIELD FOR OBSTRUCTING THE PASSAGE OF ELECTRIC AND MAGNETIC RADIANT ENERGY WHICH COMPRISES, A METALLIC PLATE CONSTRUCTED OF A PARAMAGNERTIC NICKEL ALLOY, A SPACED SILICON STEEL PLATE, A COMPOSITION LAYER COMPRISING AN ELECTRICALLY CONDUCTIVE FERRO-MAGNETIC MATERIAL IN FINELY DIVIDED FORM AND A BINDER INTERPOSED BETWEEN THE TWO PLATES, A SIMILAR COMPOSITION LAYER DISPOSED ON THE OPPOSITE SIDE OF SAID STEEL PLATE, AND COMPOSITION LAYERS COMPRISING AN ELECTRICALLY CONDUCTVE FIAMAGNETIC MATERIAL IN FINELY DIVIDED FORM AND A BINDER SISPOSED RESPECTIVELY UPON SAID ALLOY PLATE AND SAID LAST-MENTIONED LAYER CONTAINING THE FERRO-MAGNETIC MATERIAL.
Claim 2
Dependent Claim
91 words
SHIELD FOR OBSTRUCTING THE PASSAGE OF ELECTRIC AND MAGNETIC RADIANT ENERGY WHICH COMPRISES, A METALLIC PLATE CONSTRUCTED OF A PARAMAGNERTIC NICKEL ALLOY, A SPACED SILICON STEEL PLATE, A COMPOSITION LAYER COMPRISING AN ELECTRICALLY CONDUCTIVE FERRO-MAGNETIC MATERIAL IN FINELY DIVIDED FORM AND A BINDER INTERPOSED BETWEEN THE TWO PLATES, A SIMILAR COMPOSITION LAYER DISPOSED ON THE OPPOSITE SIDE OF SAID STEEL PLATE, AND COMPOSITION LAYERS COMPRISING AN ELECTRICALLY CONDUCTVE FIAMAGNETIC MATERIAL IN FINELY DIVIDED FORM AND A BINDER SISPOSED RESPECTIVELY UPON SAID ALLOY PLATE AND SAID LAST-MENTIONED LAYER CONTAINING THE FERRO-MAGNETIC MATERIAL.
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) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |