Patent US2912438A successfully refreshed from Google Patents.
US2912438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New acetanilides derivatives and the manufacture thereof
Assignee: Boots Pure Drug Co Ltd
•
Filing: 1955-07-19
•
Granted: 1959-11-10
•
Expires: 1975-07-19
Abstract
No abstract record available.
Inventors
- 👤 Oxley Peter
- 👤 Bristow Norman William
- 👤 Woolfe Gerald
- 👤 Williams George Alfre Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:49
CPC Classifications
C; C07; C07C; C07C233/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
A DICHLOROACETANILIDE OF THE FORMULA
Claim 2
Dependent Claim
5 words
A DICHLOROACETANILIDE OF THE FORMULA
Claim 3
Dependent Claim
5 words
A DICHLOROACETANILIDE OF THE FORMULA
Claim 4
Dependent Claim
5 words
A DICHLOROACETANILIDE OF THE FORMULA
References Cited (Backward Citations)
BE521876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |