US3077487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lower alkylene and lower alkylenephenylene-lower alkylene polyamine bis n, n'-lower alkylene di and tri carboxylic acids, esters, salts, and chelates
Assignee: Victor Chemical Works
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Filing: 1959-06-17
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Granted: 1963-02-12
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Expires: 1979-06-17
Abstract
No abstract record available.
Inventors
- 👤 William M Ramsey
- 👤 Kerzerian Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:43
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/18; C07D207/22; C07D207/24; C07D207/26; C07D207/273; C07D207/277; C02; C02F; C02F5/00; C02F5/08; C02F5/10; C02F5/12; C07D265/00; C07D265/28; C07D265/30; C07D265/32; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C23; C23F; C23F11/00; C23F11/04; C23G; C23G1/00; C23G1/02; C23G1/04; C23G1/06; C23G1/061; C23G1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF: (A) A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
14 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF: (A) A COMPOUND OF THE FORMULA
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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |