US2904590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acetanilide derivatives and the manufacture thereof
Assignee: Boots Pure Drug Co Ltd
•
Filing: 1956-03-21
•
Granted: 1959-09-15
•
Expires: 1976-03-21
Abstract
No abstract record available.
Inventors
- 👤 Oxley Peter
- 👤 Bristow Norman William
- 👤 Williams George Alfre Harrison
- 👤 Woolfe Gerald
- 👤 Wilmshurst Eric Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:51
CPC Classifications
C; C07; C07C; C07C233/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A DICHLOROACETANILIDE OF THE FORMULA
Claim 2
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) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |