US2897177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-nitroso bis(alkoxyphenyl)phenylenediamines
Assignee: Monsanto Chemicals Ltd
•
Filing: 1955-07-19
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Granted: 1959-07-28
•
Expires: 1975-07-19
Abstract
No abstract record available.
Inventors
- 👤 Ching C Tung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:25
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/32; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
22 words
A SULFUR VULCANIZABLE DIENE HYDROCARBON RUBBER COMPOSITION CONTAINING A SMALL AMOUNT SUFFICIENT TO INHIBIT EXPOSURE CRACKING OF THE COMPOUND OF 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) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |