US2548003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for handling unstable chemical dispersions
Assignee: Akzo Nobel UK PLC
•
Filing: 1945-03-01
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Granted: 1951-04-10
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Expires: 1965-03-01
Abstract
No abstract record available.
Inventors
- 👤 Hobart O Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:24
CPC Classifications
D; D01; D01D; D01D1/00; D01D1/06; D01D1/065; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921; Y10S585/924; Y10S585/926; Y10T; Y10T137/00; Y10T137/4673; Y10T137/4857
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN APPARATUS FOR HANDLING DISPERSIONS AND THE LIKE, SUCH AS VISCOSE, A PLURALITY OF SUPPLY TANKS, A DISCHARGE HEADER CONNECTED TO EACH OF THE TANKS, MEANS FOR CONTROLLING THE FLOW OF THE CONTENTS OF EACH OF SAID TANKS THROUGH SAID HEADER, A SECOND HEADER ASSOCIATED WITH THE TANKS, A BRANCH LINE COMMUNICATING SUBSTANTIALLY WITH THE BOTTOM OF THE INTERIOR OF EACH TANK, A SECOND BRANCH LINE CONNECTED TO THE UPPER REGION OF THE INTERIOR OF EACH TANK, MEANS FOR SELECTIVELY CONNECTING THE SECOND HEADER WITH SAID BRANCH LINES, AN INDEPENDENT PRESSURE LINE, CONDUITS EACH PROVIDED WITH A VALVE OR COCK AND INDEPENDENT OF THE HEADERS AND SAID BRANCH LINES FOR SELECTIVELY CONNECTING SAID PRESSURE LINE TO THE SEVERAL TANKS.
Claim 2
Dependent Claim
119 words
IN APPARATUS FOR HANDLING DISPERSIONS AND THE LIKE, SUCH AS VISCOSE, A PLURALITY OF SUPPLY TANKS, A DISCHARGE HEADER CONNECTED TO EACH OF THE TANKS, MEANS FOR CONTROLLING THE FLOW OF THE CONTENTS OF EACH OF SAID TANKS THROUGH SAID HEADER, A SECOND HEADER ASSOCIATED WITH THE TANKS, A BRANCH LINE COMMUNICATING SUBSTANTIALLY WITH THE BOTTOM OF THE INTERIOR OF EACH TANK, A SECOND BRANCH LINE CONNECTED TO THE UPPER REGION OF THE INTERIOR OF EACH TANK, MEANS FOR SELECTIVELY CONNECTING THE SECOND HEADER WITH SAID BRANCH LINES, AN INDEPENDENT PRESSURE LINE, CONDUITS EACH PROVIDED WITH A VALVE OR COCK AND INDEPENDENT OF THE HEADERS AND SAID BRANCH LINES FOR SELECTIVELY CONNECTING SAID PRESSURE LINE TO THE SEVERAL TANKS.
References Cited (Backward Citations)
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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) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |