US3155709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making hydrocarbylphosphonodithioic acids
Assignee: Monsanto Co
•
Filing: 1962-02-27
•
Granted: 1964-11-03
•
Expires: 1982-02-27
Abstract
No abstract record available.
Inventors
- 👤 Peter E Newallis
- 👤 John P Chupp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:26
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
THE METHOD OF MAKING A PHOSPHONOTHIOIC ACID OF THE FORMULA
Claim 2
Independent Claim
10 words
THE METHOD OF MAKING A PHOSPHONOTHIOIC ACID OF THE FORMULA
References Cited (Backward Citations)
GB740444A
Cited
US2802856A
Cited
US2841553A
Cited
US2841551A
Cited
US3074991A
Cited
DE1101417B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |