US3058978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New photo-sensitizing dyestuffs
Assignee: Hoechst AG
•
Filing: 1960-06-21
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Granted: 1962-10-16
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Expires: 1980-06-21
Abstract
No abstract record available.
Inventors
- 👤 Ludwig W Berlin
- 👤 Hamal Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:16
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/0075; C09B23/02; C09B23/10; C09B23/14; C09B23/145; C09B23/146; G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
A PHOTO-SENSITIZING DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
6 words
A PHOTO-SENSITIZING DYESTUFF OF THE FORMULA
Claim 3
Dependent Claim
6 words
RHE PHOTO-SENSITIZING DYESTUFF OF THE FORMULA
Claim 4
Dependent Claim
6 words
RHE PHOTO-SENSITIZING DYESTUFF OF THE FORMULA
References Cited (Backward Citations)
US2194213A
Cited
US2202990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |