US3513660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of congealable impurities from gases
Assignee: Linde GmbH
•
Filing: 1966-05-10
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Granted: 1970-05-26
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Expires: 1986-05-10
Abstract
No abstract record available.
Inventors
- 👤 Rudolf Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:10
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/0228; F25J3/0276; B; B01; B01D; B01D53/00; B01D53/26; F25J3/0204; F25J3/0223; F25J2205/00; F25J2205/24; F25J2205/30; F25J2210/00; F25J2210/42; F25J2230/00; F25J2230/08; F25J2230/42; F25J2270/00; F25J2270/04; F25J2270/90; F25J2270/904; Y; Y02; Y02C; Y02C20/00; Y02C20/40; Y10; Y10S; Y10S62/00; Y10S62/922; Y10S62/928; Y10S62/929
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2460859A
Cited
US2589262A
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US2653455A
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US2763137A
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US2863295A
Cited
US3064441A
Cited
US3258930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |