US2832749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6-ether substituted 2, 2, 4-trialkyl-1, 2, 3, 4-tetrahydroquinolines
Assignee: Monsanto Chemicals Ltd
•
Filing: 1952-09-10
•
Granted: 1958-04-29
•
Expires: 1972-09-10
Abstract
No abstract record available.
Inventors
- 👤 James O Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:36
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3437; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A VULCANIZED RUBBER COMPOSITION CONTAINING A 6-ETHER SUBSTITUTED-2,2,4-TRIALKYL - 1,2,3,4 - TETRAHYDROQUINOLINE OF THE STRUCTURE
Claim 2
Dependent Claim
15 words
A VULCANIZED RUBBER COMPOSITION CONTAINING A 6-ETHER SUBSTITUTED-2,2,4-TRIALKYL - 1,2,3,4 - TETRAHYDROQUINOLINE OF THE STRUCTURE
References Cited (Backward Citations)
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Cited
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Cited
US2507485A
Cited
US2500229A
Cited
US2616871A
Cited
US2630421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |