US2497346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coloring method for plastics
Assignee: Reliable Plastics Co Ltd
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Filing: 1946-10-29
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Granted: 1950-02-14
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Expires: 1966-10-29
Abstract
No abstract record available.
Inventors
- 👤 Henry M Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:12
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/203; B; B29; B29C; B29C67/00; Y; Y10; Y10S; Y10S524/00; Y10S524/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A METHOD OF COLOURING A CHARGE OF PULVERIZED NON-POROUS PLASTIC MATERIAL WITHIN AN ENCLOSURE WHICH COMPRISES THE STEPS OF, TUMBLING THE CHARGE WITHIN THE ENCLOSURE WITH PARTICLES OF FINELY DIVIDED COLOURING MATERIAL TO FORM A SUBSTANTIALLY HOMOGENEOUS MIXTURE OF THE CHARGE AND THE COLOURING MATERIAL, AND DURING THE TUMBLING OPERATION DISTRIBUTING THROUGHOUT SAID MIXTURE A FINELY DIVIDED LOW-BOILING POINT ORGANIC LIQUID WHICH HAS SOLVENT POWER FOR AT LEAST THE PLASTIC
Claim 2
Independent Claim
70 words
A METHOD OF COLOURING A CHARGE OF PULVERIZED NON-POROUS PLASTIC MATERIAL WITHIN AN ENCLOSURE WHICH COMPRISES THE STEPS OF, TUMBLING THE CHARGE WITHIN THE ENCLOSURE WITH PARTICLES OF FINELY DIVIDED COLOURING MATERIAL TO FORM A SUBSTANTIALLY HOMOGENEOUS MIXTURE OF THE CHARGE AND THE COLOURING MATERIAL, AND DURING THE TUMBLING OPERATION DISTRIBUTING THROUGHOUT SAID MIXTURE A FINELY DIVIDED LOW-BOILING POINT ORGANIC LIQUID WHICH HAS SOLVENT POWER FOR AT LEAST THE PLASTIC
References Cited (Backward Citations)
US1899542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |