US2511064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preservation of rubbery polymers by derivatives of ketone amines
Assignee: Monsanto Chemicals Ltd
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Filing: 1947-01-30
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Granted: 1950-06-13
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Expires: 1967-01-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Ingram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:53
CPC Classifications
C; C08; C08G; C08G14/00; C08G14/02; C08G14/04; C08G14/06; C08L; C08L21/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
35 words
A COMPOSITION OF MATTER COMPRISES A RUBBERY COPOLYMER OF BUTADIENE-1,3 WITH A LESSER AMOUNT OF STYRENE HAVING INCORPORATED THEREIN THE FUSIBLE RESINOUS CONDENSATION PRODUCT OF SUBSTANTIALLY EQUIMOLECULAR PROPORTIONS OF PHENOL, FORMALDEHYDE AND 2, 2, 4-TRIMETHYL-DIHYDROQUINOLINE.
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) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |