US3445356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of iron enneacarbonyl
Assignee: Huntington Alloys Corp
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Filing: 1966-08-25
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Granted: 1969-05-20
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Expires: 1986-08-25
Abstract
No abstract record available.
Inventors
- 👤 Heinz Paul Beutner
- 👤 Charles Edward O'neill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:41
CPC Classifications
C; C01; C01G; C01G49/00; C01G49/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
66 words
CONTINUOUS PROCESS FOR PHOTOCHEMICALLY PRODUCING IRON ENNEACARBONYL COMPRISING IRRADIATING A FLOWING STEAM OF ESSENTIALLY PURE LIQUID IRON PENTACARBONYL AT A TEMPERATURE BELOW ABOUT 20*C. WITH LIGHT WITHIN THE WAVELENGTHS OF 400 TO 700 MILLIMICRONS TO FORM IRON ENNEACARBONYL DISPERSED IN SAID IRON PENTACARBONYL, SEPARATING THE IRON ENNEACARBONYL FROM SAID LIQUID PENTACARBONYL, COOLING THE SEPARATED IRON PENTACARBONYL AND RECYCLING THE COOLED IRON PENTACARBONYL TO THE IRRADIATION STEP.
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) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |