US3451907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photochemical process for preparing oxygen-containing perfluorinated compounds
Assignee: Montedison SpA
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Filing: 1966-11-18
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Granted: 1969-06-24
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Expires: 1986-11-18
Abstract
No abstract record available.
Inventors
- 👤 Dario Sianesi
- 👤 Gian Carlo Bernardi
- 👤 Adolfo Pasetti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:38
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/027; C07; C07C; C07C57/00; C07C57/52; C08F; C08F20/00; C08F20/62; C08G65/00; C08G65/002; C08G65/005; C08G65/007; C08G67/00; C10; C10M; C10M3/00; C10M2213/00; C10M2213/04; C10M2213/06; C10N; C10N2050/00; C10N2050/015; C10N2050/02; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A PROCESS OF REACTING IN THE LIQUID PHASE AT LEAST ONE PERFLUORINATED COMPOUND HAVING CONJUGATED TERMINAL DOUBLE BONDS WITH MOLECULAR OXYGEN BY ACTIVATING WITH U.V. LIGHT HAVING A WAVELENGTH BETWEEN 1000 AND 4000A., AT A TEMPERATURE BETWEEN -78* AND +50*C., UNDER PRESSURES BETWEEN 0.1 AND 10 ATMOSPHERES.
Claim 2
Dependent Claim
47 words
A PROCESS OF REACTING IN THE LIQUID PHASE AT LEAST ONE PERFLUORINATED COMPOUND HAVING CONJUGATED TERMINAL DOUBLE BONDS WITH MOLECULAR OXYGEN BY ACTIVATING WITH U.V. LIGHT HAVING A WAVELENGTH BETWEEN 1000 AND 4000A., AT A TEMPERATURE BETWEEN -78* AND +50*C., UNDER PRESSURES BETWEEN 0.1 AND 10 ATMOSPHERES.
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) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |