US3048464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water soluble dye form and method of making
Assignee: Individual
•
Filing: 1959-04-07
•
Granted: 1962-08-07
•
Expires: 1979-04-07
Abstract
No abstract record available.
Inventors
- 👤 Carl E Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:19
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0097
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A DYE MARKER FOR GRADUALLY RELEEASING A DYE INTO SALT WATER, SAID MARKER BEING STABLE UNDER CONDITIONS OF RELATIVELY HIGH HUMIDITY AND RELATIVELY GREAT RANGES IN ATMOSPHERIC TEMPERATURE, SAID MARKER COMPRISING THE MAJOR CONSOLID MANNITOL HAVING A WATER SOLUBLE DYE DISSOLVED UNIFORMLY THEREIN, SAID MANNITOL COMPRISING THE MAJOR CONSTITUENT OF SAID BLOCK.
Claim 2
Dependent Claim
52 words
A DYE MARKER FOR GRADUALLY RELEEASING A DYE INTO SALT WATER, SAID MARKER BEING STABLE UNDER CONDITIONS OF RELATIVELY HIGH HUMIDITY AND RELATIVELY GREAT RANGES IN ATMOSPHERIC TEMPERATURE, SAID MARKER COMPRISING THE MAJOR CONSOLID MANNITOL HAVING A WATER SOLUBLE DYE DISSOLVED UNIFORMLY THEREIN, SAID MANNITOL COMPRISING THE MAJOR CONSTITUENT OF SAID BLOCK.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |