US2914530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thiophosphoric acid esters and their production
Assignee: Bayer AG
•
Filing: 1957-05-28
•
Granted: 1959-11-24
•
Expires: 1977-05-28
Abstract
No abstract record available.
Inventors
- 👤 Schrader Gerhard
- 👤 Lorenz Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:00
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6515; C07F9/6518; C07F9/65188; C07F9/553; C07F9/5537
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
THIOPHOSPHORIC ACID ESTERS OF THE GENERAL FORMULA
Claim 2
Dependent Claim
7 words
THIOPHOSPHORIC ACID ESTERS OF THE GENERAL FORMULA
Claim 3
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 4
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2447715A
Cited
GB713278A
Cited
US2644002A
Cited
US2736726A
Cited
DE930446C
Cited
DE933627C
Cited
DE927270C
Cited
US2758115A
Cited
US2767194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |