Patent US2828272A successfully refreshed from Google Patents.
US2828272A
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Rubber composition containing a resinous dispersing agent, and a process of compounding such a composition
Assignee: Individual
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Filing: 1954-02-24
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Granted: 1958-03-25
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Expires: 1974-02-24
Abstract
No abstract record available.
Inventors
- 👤 Ullrich Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:58
CPC Classifications
C; C08; C08L; C08L21/00; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A RUBBER COMPOSITION COMPRISING RUBBER LATEX AND, INTIMATELY DISPERSED THERETHROUGH, AN AQUEOUS EMULSION OF A RESINOUS REACTION PRODUCT OF NITRIC ACID WITH A MINERAL OIL FRACTION BOILING AT A TEMPERATURE OF AT LEAST ABOUT 250*C. AND OBTAINED ON SELECTIVELY EXTRACTING MINERAL OILS BY MEANS OF SELECTIVELY ACTING SOLVENTS, SAID SOLVENTS BEING SELECTED FROM THE GROUP CONSISTING OF FURFURAL, LIQUID SULFUR DIOXIDE, NITROBENZENE, PROPANE, PHENOLS, AND B,B-DICHLORO ETHYL ESTER.
Claim 2
Dependent Claim
68 words
A RUBBER COMPOSITION COMPRISING RUBBER LATEX AND, INTIMATELY DISPERSED THERETHROUGH, AN AQUEOUS EMULSION OF A RESINOUS REACTION PRODUCT OF NITRIC ACID WITH A MINERAL OIL FRACTION BOILING AT A TEMPERATURE OF AT LEAST ABOUT 250*C. AND OBTAINED ON SELECTIVELY EXTRACTING MINERAL OILS BY MEANS OF SELECTIVELY ACTING SOLVENTS, SAID SOLVENTS BEING SELECTED FROM THE GROUP CONSISTING OF FURFURAL, LIQUID SULFUR DIOXIDE, NITROBENZENE, PROPANE, PHENOLS, AND B,B-DICHLORO ETHYL ESTER.
References Cited (Backward Citations)
US2217918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |