US2763530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing loose wool
Assignee: BASF Schweiz AG
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Filing: 1951-12-18
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Granted: 1956-09-18
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Expires: 1971-12-18
Abstract
No abstract record available.
Inventors
- 👤 Schuetz Fritz
- 👤 Roesti Hans
- 👤 Albrecht Otto
- 👤 Meyer Jules
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:10
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/60; D06P1/607; D06P1/6073; D06P1/6076; D06P3/00; D06P3/02; D06P3/04; D06P3/14; D06P3/20; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PROCESS FOR COMBATING THE TIPPY DYEING OF LOOSE WOOL IN THE DYEING OF SUCH WOOL WITH WOOL DYESTUFFS SELECTED FROM THE CLASS CONSITING OF METALLIZABLE O,O''DIHYDROXY MONOAZO DYESTUFFS AND O,O''-DIHYDROXY MONOAZO DYESTUFFS CONTAINING METAL IN COMPLEX UNION, WHICH COMPRISES DYEING THE LOOSE WOOL WITH THE SAID DYESTUFF AND TREATING THE TIPPY DYEING LOOSE WOOL AT THE LATEST DURING THE DYEING OPERATION WITH A SMALL QUANTITY OF A WATERSOLUBLE CONDENSATION PRODUCT WHICH IN ITS FREE BASE STATE CORRESPONDS TO THE FORMULA
Claim 2
Dependent Claim
81 words
A PROCESS FOR COMBATING THE TIPPY DYEING OF LOOSE WOOL IN THE DYEING OF SUCH WOOL WITH WOOL DYESTUFFS SELECTED FROM THE CLASS CONSITING OF METALLIZABLE O,O''DIHYDROXY MONOAZO DYESTUFFS AND O,O''-DIHYDROXY MONOAZO DYESTUFFS CONTAINING METAL IN COMPLEX UNION, WHICH COMPRISES DYEING THE LOOSE WOOL WITH THE SAID DYESTUFF AND TREATING THE TIPPY DYEING LOOSE WOOL AT THE LATEST DURING THE DYEING OPERATION WITH A SMALL QUANTITY OF A WATERSOLUBLE CONDENSATION PRODUCT WHICH IN ITS FREE BASE STATE CORRESPONDS TO THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |