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Patent US2956074A successfully refreshed from Google Patents.
US2956074A
Expired / Lapsed
US
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Thiophosphoric acid esters
Assignee: Bayer AG
•
Filing: 1957-11-13
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Granted: 1960-10-11
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Expires: 1977-11-13
Abstract
No abstract record available.
Inventors
- 👤 Dorken August
- 👤 Schrader Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:45
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/1651
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
THISPHOSPHORIC ACIDS ESTERS OF THE FOLLOWING FORMULA
Claim 2
Dependent Claim
7 words
THISPHOSPHORIC ACIDS ESTERS OF THE FOLLOWING 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) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |