US2918491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salicylic acid and esters of salicylic acid
Assignee: Monsanto Chemicals Ltd
•
Filing: 1957-03-18
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Granted: 1959-12-22
•
Expires: 1977-03-18
Abstract
No abstract record available.
Inventors
- 👤 Robert W Radue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:13
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/42; C07C51/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A COMPOSITION CONSISTING ESSENTIALLY OF A COMPOUND SELECTED FROM SALICYCLIC ACID AND ESTERS THEREOF AND, AS A STABILIZER THEREFOR, ORTHO-PHOSPHORIC ACID IN AN AMOUNT UP TO ABOUT 1,000 PARTS PER MILLION PARTS OF SAID COMPOUND.
Claim 2
Dependent Claim
35 words
A COMPOSITION CONSISTING ESSENTIALLY OF A COMPOUND SELECTED FROM SALICYCLIC ACID AND ESTERS THEREOF AND, AS A STABILIZER THEREFOR, ORTHO-PHOSPHORIC ACID IN AN AMOUNT UP TO ABOUT 1,000 PARTS PER MILLION PARTS OF SAID COMPOUND.
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) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |