US2641557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper with improved printing characteristics
Assignee: NCR Voyix Corp
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Filing: 1948-11-18
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Granted: 1953-06-09
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Expires: 1968-11-18
Abstract
No abstract record available.
Inventors
- 👤 Barrett K Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:48
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/63; D21H17/67; D21H17/68; D21H19/00; D21H19/36; D21H19/38; D21H19/40; Y; Y10; Y10S; Y10S101/00; Y10S101/29; Y10T; Y10T428/00; Y10T428/25; Y10T428/259
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
33 words
PRINTING PAPER INCLUDING AS ADSORPTIVE INK BLEED RESISTANT PRINT-RECEIVING MATERIAL PARTICLES OF SOLID MATERIAL THE MAJOR PORTION OF WHICH ARE PARTICLES OF ATTAPULGITE IN ITS NEEDLE-SHAPED CRYSTALLINE FORM AND IN ITS ADSORPTIVE CONDITION.
Claim 2
Dependent Claim
33 words
PRINTING PAPER INCLUDING AS ADSORPTIVE INK BLEED RESISTANT PRINT-RECEIVING MATERIAL PARTICLES OF SOLID MATERIAL THE MAJOR PORTION OF WHICH ARE PARTICLES OF ATTAPULGITE IN ITS NEEDLE-SHAPED CRYSTALLINE FORM AND IN ITS ADSORPTIVE CONDITION.
Claim 3
Dependent Claim
21 words
THE PRINTING PAPER OF CLAIM 1 IN WHICH THE ATTAPULGITE IS APPLIED AS A CONSTITUENT OF A PRINTRECEIVING PAPER SURFACE COATING.
References Cited (Backward Citations)
US2307239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |