Patent US3069863A successfully refreshed from Google Patents.
US3069863A
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Apparatus for evaporating impurities contaminating liquid gas, for example acetylene contaminating liquid oxygen
Assignee: US Philips Corp
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Filing: 1958-07-18
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Granted: 1962-12-25
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Expires: 1978-07-18
Abstract
No abstract record available.
Inventors
- 👤 Dolphin Johannes Hendrikus
- 👤 Ster Johannes Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:04
CPC Classifications
C; C01; C01B; C01B13/00; C01B13/02; C01B13/0229; C01B13/0248; B; B01; B01D; B01D1/00; B01D1/22; F; F17; F17C; F17C9/00; F17C9/02; F25; F25J; F25J3/00; F25J3/08; C01B2210/00; C01B2210/0043; C01B2210/0068; C01B2210/007; F25J2200/00; F25J2200/80; Y; Y10; Y10S; Y10S62/00; Y10S62/902
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
23 words
AN APPARATUS FOR EVAPORATING IMPURITIES SUCH AS ACETYLENE FROM LIQUID OXYGEN IN A GAS FRACTIONATING COLUMN COMPRISING MEANS FOR DISPENSING LIQUID OXYGEN, A
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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) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |