US2653152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyanine dye and process of making same
Assignee: Xerox Corp
•
Filing: 1950-08-04
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Granted: 1953-09-22
•
Expires: 1970-08-04
Abstract
No abstract record available.
Inventors
- 👤 John H Dessauer
- 👤 Michael A Insalaco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:52
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/10; C09B23/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
THE PROCESS OF PREPARING ASYMMETRICAL DYES OF THE FORMULA:
Claim 2
Dependent Claim
9 words
THE PROCESS OF PREPARING ASYMMETRICAL DYES 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) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |