Patent US2822391A successfully refreshed from Google Patents.
US2822391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conhj
Assignee: —
•
Filing: —
•
Granted: 1958-02-04
•
Expires: 1975-02-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:50
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/04; C07D263/06; Y; Y10; Y10S; Y10S424/00; Y10S424/05
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
THE NEW CHEMICAL COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
7 words
THE NEW CHEMICAL COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
32 words
NEW CHEMICAL COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF ETHERS OF SALICYLIC ACID AMIDE, AND SALTS OF SAID ETHERS WITH INORGANIC AND ORGANIC NON-TOXIC ACIDS, THE SAID ETHERS HAVING THE GENERAL FORMULA
Claim 4
Dependent Claim
32 words
NEW CHEMICAL COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF ETHERS OF SALICYLIC ACID AMIDE, AND SALTS OF SAID ETHERS WITH INORGANIC AND ORGANIC NON-TOXIC ACIDS, THE SAID ETHERS 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) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |