US2961466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quaternary ammonium thiocarbonates
Assignee: Monsanto Chemicals Ltd
•
Filing: 1957-05-14
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Granted: 1960-11-22
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Expires: 1977-05-14
Abstract
No abstract record available.
Inventors
- 👤 Morris L Nielsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:52
CPC Classifications
A; A01; A01N; A01N59/00; A01N59/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
QUATERNARY AMMONIUM THIOCARBONATE REACTION PRODUCTS OF A QUATERNARY AMMONIUM COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
13 words
QUATERNARY AMMONIUM THIOCARBONATE REACTION PRODUCTS OF A QUATERNARY AMMONIUM 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) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |