US2923378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas solid contact
Assignee: Akzo Nobel UK PLC
•
Filing: 1955-04-05
•
Granted: 1960-02-02
•
Expires: 1975-04-05
Abstract
No abstract record available.
Inventors
- 👤 Richard H Braunlich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:35
CPC Classifications
B; B01; B01J; B01J37/00; B01J20/00; B01J20/02; B01J20/04; B01J20/041; B01J20/06; B01J20/08; B01J20/20; B01J20/28; B01J20/28014; B01J20/28023; B01J20/28028; B01J20/2803; B01J20/281; B01J20/282; B01J37/0009; B01J47/00; B01J47/018; D; D01; D01F; D01F1/00; D01F1/02; D01F1/10; B01J2220/00; B01J2220/50; B01J2220/54; B01J2220/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A PROCESS OF CONTACTING A FLUID WITH A CONTACT AGENT SELECTED FROM THE CLASS CONSISTING OF CATALYSTS, ABSORBENTS
Claim 2
Dependent Claim
18 words
A PROCESS OF CONTACTING A FLUID WITH A CONTACT AGENT SELECTED FROM THE CLASS CONSISTING OF CATALYSTS, ABSORBENTS
References Cited (Backward Citations)
US1414194A
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US2066339A
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US2090560A
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US2052588A
Cited
US2537992A
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US2436201A
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GB655185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |