Patent US2483077A successfully refreshed from Google Patents.
Patent US2268940A successfully refreshed from Google Patents.
Patent US3458294A successfully refreshed from Google Patents.
Patent US3086676A successfully refreshed from Google Patents.
Patent US3407248A successfully refreshed from Google Patents.
US3407248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha-hydroxy-beta-fluoro-beta, beta dichloro-ethyl phosphonic acid, o, o-diester
Assignee: Bayer AG
•
Filing: 1965-05-28
•
Granted: 1968-10-22
•
Expires: 1985-05-28
Abstract
No abstract record available.
Inventors
- 👤 Klauke Erich
- 👤 Kuhle Engelbert
- 👤 Hammann Ingeborg
- 👤 Lorenz Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:39
CPC Classifications
A; A01; A01N; A01N57/00; A01N57/18; A01N57/20; C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
O,O-DIALKYL ESTERS OF PHOSPHONIC ACID HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
9 words
O,O-DIALKYL ESTERS OF PHOSPHONIC ACID HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US2579810A
Cited
US2701225A
Cited
US2818366A
Cited
US2906661A
Cited
US3053876A
Cited
US3059017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |