US2729645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-[2-(dithiocarboxyamino)polymethylene] quaternary ammonium inner salts
Assignee: EIDP Inc
•
Filing: 1952-09-08
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Granted: 1956-01-03
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Expires: 1972-09-08
Abstract
No abstract record available.
Inventors
- 👤 Hein L Klopping
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:21
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/06; C07D213/16; C07D213/20; H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/45; H01J29/451; H01J29/456
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A COMPOUND OF THE GROUP CONSISTING OF INNER SALTS OF THE FORMULA
Claim 2
Dependent Claim
12 words
A COMPOUND OF THE GROUP CONSISTING OF INNER SALTS OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |