US3029236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New rubicene dyestuffs capable of fixation on textile fibers
Assignee: CIBA Co Inc
•
Filing: 1958-08-25
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Granted: 1962-04-10
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Expires: 1978-08-25
Abstract
No abstract record available.
Inventors
- 👤 Staeuble Max
- 👤 Weber Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:25
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/002; C09B62/0025; C09B62/02; C09B62/04; C09B62/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
ALKALI METAL SALT OF DIAMINO-RUBICENE SULFONIC ACID OF THE FORMULA
Claim 2
Dependent Claim
10 words
ALKALI METAL SALT OF DIAMINO-RUBICENE SULFONIC ACID OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |