US3171017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporation of metal or metalloids
Assignee: Edwards High Vacuum Ltd
•
Filing: 1960-01-18
•
Granted: 1965-02-23
•
Expires: 1980-01-18
Abstract
No abstract record available.
Inventors
- 👤 Siddall George
- 👤 Leslie A Holland
- 👤 Hilliard Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:14
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/32; C23C14/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
AN EVAPORATOR SOURCE OF A MATERIAL TO BE VAPORIZED UNDER VACUUM FOR PRODUCING A FILM OF SAID MATERIAL, SAID SOURCE COMPRISING: AN ELONGATE TUBULAR SHELL, AND A CORE MEMBER IN SAID SHELL AND CONSISTING OF A MIXTURE OF CARBON AND PLATINUM AS THE MATERIAL TO BE VAPORIZED; AN ELONGATED TUBULAR MEMBER OF AN ELECTRICALLY CONDUCTIVE MATERIAL, SAID CORE MEMBER PROJECTING OUTWARDLY OF ITS SHELL AND SAID MEMBERS BEING SHAPED TO DEFINE LIMITED AREAS AT THEIR ENDS, SAID MEMBER ENDS ABUTTING AND MAKING CONTACT AT A LIMITED AREA OF THE MATERIAL TO BE VAPORIZED; AND MEANS RESILIENTLY URGING SAID MEMBERS INTO CONTACT WITH EACH OTHER SO THAT PASSAGE OF ELECTRIC CURRENT THROUGH THE MEMBERS WILL CAUSE VAPORIZATION OF THE MATERIAL FROM THE LIMITED AREA OF CONTACT.
Claim 2
Dependent Claim
125 words
AN EVAPORATOR SOURCE OF A MATERIAL TO BE VAPORIZED UNDER VACUUM FOR PRODUCING A FILM OF SAID MATERIAL, SAID SOURCE COMPRISING: AN ELONGATE TUBULAR SHELL, AND A CORE MEMBER IN SAID SHELL AND CONSISTING OF A MIXTURE OF CARBON AND PLATINUM AS THE MATERIAL TO BE VAPORIZED; AN ELONGATED TUBULAR MEMBER OF AN ELECTRICALLY CONDUCTIVE MATERIAL, SAID CORE MEMBER PROJECTING OUTWARDLY OF ITS SHELL AND SAID MEMBERS BEING SHAPED TO DEFINE LIMITED AREAS AT THEIR ENDS, SAID MEMBER ENDS ABUTTING AND MAKING CONTACT AT A LIMITED AREA OF THE MATERIAL TO BE VAPORIZED; AND MEANS RESILIENTLY URGING SAID MEMBERS INTO CONTACT WITH EACH OTHER SO THAT PASSAGE OF ELECTRIC CURRENT THROUGH THE MEMBERS WILL CAUSE VAPORIZATION OF THE MATERIAL FROM THE LIMITED AREA OF CONTACT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |