US3729332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microporous polyolefin ink-receptive paper and method
Assignee: General Electric Co
•
Filing: 1970-04-06
•
Granted: 1973-04-24
•
Expires: 1990-04-06
Abstract
Abstract A MICROPOROUS POLYOLEFIN INK-RESPECTIVE PAPER HAS A COMPOSITE STRUCTURE OF NATURAL PAPER AND A MICROPOROUS POLYOLEFIN WITH A POROSITY OF 40 TO 90% WHICH COMPOSITE STRUCTURE HAS A DIFFUSE REFLECTANCE OF AT LEAST 90%. ANOTHER MICROPOROUS POLYOLEFIN INK-RECEPTIVE PAPER HAS A NATURAL OR ARTIFICIAL PAPER SUPPORT OR BACKING WITH A MICROPOROUS POLYOLEFIN COATING ON AT LEAST ONE MAJOR SURFACE WHICH COATING HAS A PROSITY OF 40 TO 90% AND HAS A DIFFUSE REFLECTANCE OF AT LEAST 90%. THE MICROPOROUS POLYOLEFIN ADDITION TO OR COATING ON THE PAPER PROVIDES A LIGHTWEIGHT INK-RECEPTIVE SURFACE WHICH OPTICALLY BRIGHTENS THE PAPER.
Inventors
- 👤 W Grubb
- 👤 R Macur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:39
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/20; D21H19/22; B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5254; D21H19/18; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31801; Y10T428/31804; Y10T428/31808; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |