US3433027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen purification with condensate wash and hydrogen addition to condensate
Assignee: Petrocarbon Developments Ltd
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Filing: 1967-10-09
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Granted: 1969-03-18
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Expires: 1987-10-09
Abstract
No abstract record available.
Inventors
- 👤 Paul L Charlesworth
- 👤 Alan A Haslam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:56
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/50; C01B3/506; C01C; C01C1/00; C01C1/02; C01C1/04; C01C1/0405; C01C1/0476; C01C3/00; C01C3/02; C01C3/0204; F; F25; F25J; F25J3/00; F25J3/02; F25J3/0204; F25J3/0219; F25J3/0228; F25J3/0252; F25J3/0257; C01B2203/00; C01B2203/04; C01B2203/0465; C01B2203/048; C01B2203/0495; F25J2200/00; F25J2200/80; F25J2205/00; F25J2205/02; F25J2205/04; F25J2210/00; F25J2210/20; F25J2270/00; F25J2270/04; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52; Y10; Y10S; Y10S62/00; Y10S62/931; Y10S62/934
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2591658A
Cited
US3062015A
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US3026682A
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US3097940A
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US3363428A
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US3359744A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |