US2950989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing drum-finished coated paper
Assignee: Warren SD Co
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Filing: 1958-03-17
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Granted: 1960-08-30
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Expires: 1978-03-17
Abstract
No abstract record available.
Inventors
- 👤 Eben W Freeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:38
CPC Classifications
D; D21; D21G; D21G7/00; D21G9/00; D21G9/009; D21H; D21H25/00; D21H25/08; D21H25/12; D21H25/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
PROCESS WHICH COMPRISES IMPARTING TRANSLATORY MOTION TO A WEB OF PAPER BEARING A WATER-WETTABLE SURFACE LAYER OF COATING CONTAINING MINERAL PIGMENT AND ADHESIVE MATERIAL, DIRECTING STEAM AGAINST SAID LAYER OF COATING, THEREAFTER MAINTAINING SAID LAYER OF COATING OUT OF CONTACT WITH AIR DELIVERING IT IN A MOIST AND HEATED CONDITION INTO FIRM CONTACT WITH A HEATED METALLIC FINISHING SURFACE, ELIMINATING WATER FROM SAID LAYER OF COATING AND REMOVING AND CARRYING AWAY THE COATED WEB FROM SAID FINISHING SURFACE.
Claim 2
Dependent Claim
78 words
PROCESS WHICH COMPRISES IMPARTING TRANSLATORY MOTION TO A WEB OF PAPER BEARING A WATER-WETTABLE SURFACE LAYER OF COATING CONTAINING MINERAL PIGMENT AND ADHESIVE MATERIAL, DIRECTING STEAM AGAINST SAID LAYER OF COATING, THEREAFTER MAINTAINING SAID LAYER OF COATING OUT OF CONTACT WITH AIR DELIVERING IT IN A MOIST AND HEATED CONDITION INTO FIRM CONTACT WITH A HEATED METALLIC FINISHING SURFACE, ELIMINATING WATER FROM SAID LAYER OF COATING AND REMOVING AND CARRYING AWAY THE COATED WEB FROM SAID FINISHING SURFACE.
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) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |