US2559754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoroalkanephosphonic compounds
Assignee: EIDP Inc
•
Filing: 1950-06-29
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Granted: 1951-07-10
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Expires: 1970-06-29
Abstract
No abstract record available.
Inventors
- 👤 Jr James Arthur Bittles
- 👤 Jr Robert M Joyce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:13
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/3804; C07F9/3808; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A FLUOROALKANEPHOSPHONIC COMPOUND FROM THE GROUP CONSISTING OF THE FLUOROALKANEPHOSPHONIC ACIDS HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
15 words
A FLUOROALKANEPHOSPHONIC COMPOUND FROM THE GROUP CONSISTING OF THE FLUOROALKANEPHOSPHONIC ACIDS HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |