US4084089A
Expired / Lapsed
US
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Long wave-length X-ray diffraction crystal and method of manufacturing the same
Assignee: Philips North America LLC
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Filing: 1976-12-20
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Granted: 1978-04-11
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Expires: 1996-12-20
Abstract
Abstract An x-ray diffraction crystal for the analysis of x-rays having a wave-length of 50 Angstroms or greater comprising at least two insoluble monolayers of fatty acids in the form of metal soaps, separated by monolayer pairs of differing metal cation - metal soap or non-cation soaps. Such crystals are formed by alternately raising and lowering a solid substrate through the monolayer-covered liquid surfaces of a bivalent heavy element cation and a bivalent light element cation or cation deleted monolayer.
Inventors
- 👤 William P. Zingaro
- 👤 Albert Sicignano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:17
CPC Classifications
B; B82; B82Y; B82Y30/00; G; G21; G21K; G21K1/00; G21K1/06; G21K2201/00; G21K2201/06; G21K2201/062; G21K2201/064; G21K2201/067
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
26 words
An x-ray diffracting crystal comprising a plurality of insoluble monolayer pairs of a heavy metal soap separated by insoluble monolayer pairs of a lighter metal soap.
Claim 2
Dependent Claim
26 words
An x-ray diffracting crystal comprising a plurality of insoluble monolayer pairs of a heavy metal soap separated by insoluble monolayer pairs of a lighter metal soap.
Claim 3
Dependent Claim
25 words
An x-ray diffracting crystal as claimed in claim 1 wherein the light metal is a divalent metal of lower atomic number than the heavy metal.
Claim 4
Dependent Claim
15 words
An x-ray diffracting crystal as claimed in claim 2 wherein the divalent metal is beryllium.
Claim 5
Dependent Claim
15 words
An x-ray diffracting crystal as claimed in claim 2 wherein the divalent metal is magnesium.
References Cited (Backward Citations)
US3518427A
Cited
US3591803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-10 | 1981-10-10 | 1982-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-10 | 1985-10-10 | 1986-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-10 | 1989-10-10 | 1990-04-11 | $7700.00 | Window Closed / Lapsed |