US3261827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic fiber reactive dyestuffs
Assignee: Bayer AG
•
Filing: 1962-03-05
•
Granted: 1966-07-19
•
Expires: 1982-03-05
Abstract
No abstract record available.
Inventors
- 👤 Boresch Carl
- 👤 Raue Roderich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:18
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/38; D06P1/384; C; C09; C09B; C09B62/00; C09B62/44; C09B62/78; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
5 words
A DYESTUFF OF THE FORMULA
References Cited (Backward Citations)
US3073662A
Cited
US2038298A
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US2045324A
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US2128256A
Cited
US2330828A
Cited
US3084016A
Cited
US3123595A
Cited
US3114754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |