US2966680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blue inks for ball point fountain pens
Assignee: Honeywell International Inc
•
Filing: 1957-11-25
•
Granted: 1960-12-27
•
Expires: 1977-11-25
Abstract
No abstract record available.
Inventors
- 👤 Norman L Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:03
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/16; C09D11/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
AN INK SUITABLE FOR BALL POINT PENS COMPRISING ESSENTIALY 99 TO 95 PARTS OF A SOLUTION OF 40-50% OF COLORANT OF WHICH AT LEAST A MAJOR PROPORITON IS AT LEAST ONE WATERINSOLUBLE SALT OF A DIARYL GUANIDINE HAVING THE FORMULA
Claim 2
Dependent Claim
40 words
AN INK SUITABLE FOR BALL POINT PENS COMPRISING ESSENTIALY 99 TO 95 PARTS OF A SOLUTION OF 40-50% OF COLORANT OF WHICH AT LEAST A MAJOR PROPORITON IS AT LEAST ONE WATERINSOLUBLE SALT OF A DIARYL GUANIDINE HAVING 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) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |