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US2997432A
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Dyeing of 1-olefin polymers
Assignee: Phillips Petroleum Co
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Filing: 1958-08-14
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Granted: 1961-08-22
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Expires: 1978-08-14
Abstract
No abstract record available.
Inventors
- 👤 Robert A Koble
- 👤 Walter A Goldtrap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:20
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/22; C08K5/23; B; B29; B29C; B29C71/00; B29C71/04; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/085; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2995/00; B29K2995/0018; B29K2995/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
IN THE PROCESS WHEREIN METHYL RED IS DISPERSED IN A NORMALLY SOLID POLYMER OF AN ALIPHATIC MONO-1-OLEFIN, THE IMPROVEMENT COMPRISING SUBJECTING THE POLYMER DISPERSION TO A TOTAL DOSAGE IN THE RANGE 0.5X10**6 TO 0.5X10**7 ROENTGENS OF HIGH ENERGY, IONIZING RADIATION.
Claim 2
Dependent Claim
40 words
IN THE PROCESS WHEREIN METHYL RED IS DISPERSED IN A NORMALLY SOLID POLYMER OF AN ALIPHATIC MONO-1-OLEFIN, THE IMPROVEMENT COMPRISING SUBJECTING THE POLYMER DISPERSION TO A TOTAL DOSAGE IN THE RANGE 0.5X10**6 TO 0.5X10**7 ROENTGENS OF HIGH ENERGY, IONIZING RADIATION.
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) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |