US2922812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfur-containing esters of phosphoric acid and methods of preparation
Assignee: Honeywell International Inc
•
Filing: 1956-11-26
•
Granted: 1960-01-26
•
Expires: 1976-11-26
Abstract
No abstract record available.
Inventors
- 👤 Everett E Gilbert
- 👤 Catherine J Mcgough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:09
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A METHOD OF PREPARING A SULFUR-CONTAINING PHOSPHORIC ACID ESTER OF THE GENERAL FORMULA
Claim 2
Independent Claim
13 words
A METHOD OF PREPARING A SULFUR-CONTAINING PHOSPHORIC ACID ESTER OF THE GENERAL FORMULA
References Cited (Backward Citations)
US2266514A
Cited
US2690450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |