US3420840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorinated compounds
Assignee: JP Stevens and Co Inc
•
Filing: 1960-08-04
•
Granted: 1969-01-07
•
Expires: 1980-08-04
Abstract
No abstract record available.
Inventors
- 👤 Giuliana C Tesoro
- 👤 Richard N Ring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:11
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/06; C07D213/16; C07D213/20; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/12; C07C43/123; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A POLYFUNCTIONAL FLUORINATED COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE STRUCTURE:
Claim 2
Dependent Claim
14 words
A POLYFUNCTIONAL FLUORINATED COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE STRUCTURE:
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) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |