US2967196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylenediaminediacetic acids containing phenolic groups
Assignee: Novartis Corp
•
Filing: 1955-12-06
•
Granted: 1961-01-03
•
Expires: 1975-12-06
Abstract
No abstract record available.
Inventors
- 👤 Kroll Harry
- 👤 John V Simonian
- 👤 Knell Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:48
CPC Classifications
C; C05; C05D; C05D9/00; C05D9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A METHOD FOR THE PREPARATION OF A COMPOUND OF THE FORMULA
Claim 2
Independent Claim
11 words
A METHOD FOR THE PREPARATION OF A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2493986A
Cited
US2321620A
Cited
US2493654A
Cited
US2562198A
Cited
US2624757A
Cited
US2624760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-03 | 1964-07-04 | 1965-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-03 | 1968-07-04 | 1969-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-03 | 1972-07-04 | 1973-01-03 | $7700.00 | Window Closed / Lapsed |