Patent US1126451A successfully refreshed from Google Patents.
Patent US3084166A successfully refreshed from Google Patents.
US3084166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfon-gamma-halo-beta-hydroxypropylamide-containing dyestuffs
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1958-10-27
•
Granted: 1963-04-02
•
Expires: 1978-10-27
Abstract
No abstract record available.
Inventors
- 👤 Booth Gerald
- 👤 Hudson Donald Pryce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:48
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/44; C09B62/523; C09B62/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
US2131712A
Cited
US2139787A
Cited
US2309176A
Cited
US2402538A
Cited
US2390113A
Cited
US2364033A
Cited
US2564243A
Cited
US2700686A
Cited
US2880052A
Cited
US2892829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |