US2884405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel salts of dialkyl dithiophosphoric acid and butadiene-styrene
Assignee: Monsanto Chemicals Ltd
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Filing: 1957-06-17
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Granted: 1959-04-28
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Expires: 1977-06-17
Abstract
No abstract record available.
Inventors
- 👤 Paul M Downey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:28
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/5398
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A COMPOSITION OF MATTER COMPRISING A SULPHUR-VUL CANIZABLE SYNTHETIC RUBBER-LIKE POLYMER, SAID POLYMER BEING PREPARED BY THE POLYMERIZATION OF A BUTADIENE-1,3 HYDROCARBON AND STYRENE COPOLYMERIZABLE THEREWITH AND 0.2-5% OF THE NICKEL SALT OF A DIALKYL DITHIOPHOSPHORIC ACID POSSESSING THE STRUCTURE
Claim 2
Dependent Claim
40 words
A COMPOSITION OF MATTER COMPRISING A SULPHUR-VUL CANIZABLE SYNTHETIC RUBBER-LIKE POLYMER, SAID POLYMER BEING PREPARED BY THE POLYMERIZATION OF A BUTADIENE-1,3 HYDROCARBON AND STYRENE COPOLYMERIZABLE THEREWITH AND 0.2-5% OF THE NICKEL SALT OF A DIALKYL DITHIOPHOSPHORIC ACID POSSESSING THE STRUCTURE
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) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |