US2589306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bleachable transfer ink
Assignee: Individual
•
Filing: 1948-03-30
•
Granted: 1952-03-18
•
Expires: 1968-03-30
Abstract
No abstract record available.
Inventors
- 👤 Helen J Steiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:33
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/12; Y; Y10; Y10S; Y10S101/00; Y10S101/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A WATER PERMEABLE, BLEACHABLE, INK COMPOSITION FOR COATING AND IMPREGNATING TYPEWRITER RIBBONS AND CARBON PAPER COMPRISING A MELTABLE WAX VEHICLE INCLUDING AT LEAST TEN PERCENT OF A WATER DISPERSIBLE WETTING AGENT FOR RENDERIING SAID VEHICLE PERMEABLE TO AQUEOUS BLEACHING AGENTS, AND AS THE SOLE COLORANT A BLEACHABLE DYE HOMOGENEOUSLY DISPERSED THROUGH THE VEHICLE.
Claim 2
Dependent Claim
53 words
A WATER PERMEABLE, BLEACHABLE, INK COMPOSITION FOR COATING AND IMPREGNATING TYPEWRITER RIBBONS AND CARBON PAPER COMPRISING A MELTABLE WAX VEHICLE INCLUDING AT LEAST TEN PERCENT OF A WATER DISPERSIBLE WETTING AGENT FOR RENDERIING SAID VEHICLE PERMEABLE TO AQUEOUS BLEACHING AGENTS, AND AS THE SOLE COLORANT A BLEACHABLE DYE HOMOGENEOUSLY DISPERSED THROUGH THE VEHICLE.
References Cited (Backward Citations)
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Cited
US1954451A
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US1992016A
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Cited
US2236602A
Cited
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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) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |