US2581186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper having improved printing characteristics
Assignee: NCR Voyix Corp
•
Filing: 1948-11-18
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Granted: 1952-01-01
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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 04:43
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/38; D21H19/40; D21H17/00; D21H17/63; D21H17/67; D21H17/68; Y; Y10; Y10T; Y10T428/00; Y10T428/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
PAPER FILLED WITH SOLID PARTICLES THE MAJOR PORTION OF WHICH ARE ZEOLITE MATERIAL HAVING INTERNAL ADSORBENT SURFACES.
Claim 2
Dependent Claim
17 words
PAPER FILLED WITH SOLID PARTICLES THE MAJOR PORTION OF WHICH ARE ZEOLITE MATERIAL HAVING INTERNAL ADSORBENT SURFACES.
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) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |