US3100828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Source of radiation for infrared spectrophotometers
Assignee: Individual
•
Filing: 1960-09-07
•
Granted: 1963-08-13
•
Expires: 1980-09-07
Abstract
No abstract record available.
Inventors
- 👤 Jacobs Gerhard
- 👤 Melcher Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:28
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/02; G01J3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
AN INFRARED RADIATION SOURCE WHICH COMPRISES A HEATED ELECTRICAL CONDUCTOR; A RADIATION IMPERMEABLE CASING SURROUNDING SAID CONDUCTOR, SAID CASING DEFINING AN OPENING FOR THE PASSAGE THERETHROUGH OF RADIATION FROM SAID CONDUCTOR AND A CONDUIT FOR THE PASSAGE OF A COOLING GAS ALONG SAID CASING; AND MEANS FOR INJECTING A COOLING GAS INTO SAID CONDUIT.
Claim 2
Dependent Claim
54 words
AN INFRARED RADIATION SOURCE WHICH COMPRISES A HEATED ELECTRICAL CONDUCTOR; A RADIATION IMPERMEABLE CASING SURROUNDING SAID CONDUCTOR, SAID CASING DEFINING AN OPENING FOR THE PASSAGE THERETHROUGH OF RADIATION FROM SAID CONDUCTOR AND A CONDUIT FOR THE PASSAGE OF A COOLING GAS ALONG SAID CASING; AND MEANS FOR INJECTING A COOLING GAS INTO SAID CONDUIT.
References Cited (Backward Citations)
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Cited
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US1983327A
Cited
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Cited
US2784335A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |