Patent US6697944B1 successfully refreshed from Google Patents.
Patent US3092649A successfully refreshed from Google Patents.
US3092649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thiophosphoric acid esters and process for their production
Assignee: Bayer AG
•
Filing: 1960-08-31
•
Granted: 1963-06-04
•
Expires: 1980-08-31
Abstract
No abstract record available.
Inventors
- 👤 Schrader Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:23
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/30; C07F9/32; A; A01; A01N; A01N57/00; A01N57/10; A01N57/12; C07F9/06; C07F9/16; C07F9/165; C07F9/1651; C07F9/1652
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A THIOPHOSPHORIC ACID ESTER OF THE FOLLOWING FORMULA
Claim 2
Dependent Claim
19 words
A COMPOUND OF CLAIM 5 WHEREIN ALKYLENE STANDS FOR A LOWER ALKYLENE RADICAL HAVING 1 TO 2 CARBON ATOMS.
References Cited (Backward Citations)
US2494283A
Cited
US2494284A
Cited
US2611728A
Cited
US2736726A
Cited
US2767206A
Cited
US2881201A
Cited
GB791824A
Cited
US2862017A
Cited
US2879283A
Cited
US2947662A
Cited
US2884354A
Cited
US2895982A
Cited
US2882198A
Cited
US2890947A
Cited
US2885430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |