US3307993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of cast coating paper and simultaneously laminating
Assignee: Albemarle Paper Manufacturing Co
•
Filing: 1963-11-12
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Granted: 1967-03-07
•
Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Bruce C Gottwald
- 👤 John M Haigh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:03
CPC Classifications
D; D21; D21H; D21H25/00; D21H25/08; D21H25/12; D21H5/00; D21H5/0005; D21H5/006; D21H5/0062; D21H5/0067; Y; Y10; Y10T; Y10T428/00; Y10T428/27; Y10T428/31504; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A PROCESS FOR CAST COATING PAPER AND THE LIKE COMPRISING IN COMBINATION, A. COATING ONE SURFACE OF A SUBSTANTIALLY DRY FIRST PAPER WEB WITH A HARDENABLE LIQUID COATING CONTAINING A VOLATILE LIQUID AND AN ADHESIVE WHICH COATING IS CONFORMABLE TO A SMOOTH FORMING SURFACE, B. PASSING THE UNCOATED SURFACE OF SAID FIRST PAPER WEB INTO CONTACT WITH A SUBSTANTIALLY DRY SECOND PAPER WEB TO FORM A COMPOSITE PAPER WEB HAVING AN EXTERIOR COATING AND NO INTERIOR ADHESIVE, C. COMPRESSING SAID COMPOSITE PAPER WEB BY MEANS OF A CONTINUOUS PRESSING SUFACE AGAINST A HEATED SMOTH FORMING SURFACE WITH SAID EXTERIOR COATED SURFACE AGAINST SAID HEATED SMOOTH FORMING SURFACE, SAID HEATED SMOOTH FORMING SURFACE BEING HEATED TO A TEMPERATURE SUFFICIENT TO BOIL SAID VOLATILE LIQUID AND SAID COMPRESSING BEING AT SUFFICIENT PRESSURE TO CONTINUOUSLY MAINTAIN SAID COATING AGAINST SAID HEATED SMOOTH FORMING SURFACE,
Claim 2
Dependent Claim
141 words
A PROCESS FOR CAST COATING PAPER AND THE LIKE COMPRISING IN COMBINATION, A. COATING ONE SURFACE OF A SUBSTANTIALLY DRY FIRST PAPER WEB WITH A HARDENABLE LIQUID COATING CONTAINING A VOLATILE LIQUID AND AN ADHESIVE WHICH COATING IS CONFORMABLE TO A SMOOTH FORMING SURFACE, B. PASSING THE UNCOATED SURFACE OF SAID FIRST PAPER WEB INTO CONTACT WITH A SUBSTANTIALLY DRY SECOND PAPER WEB TO FORM A COMPOSITE PAPER WEB HAVING AN EXTERIOR COATING AND NO INTERIOR ADHESIVE, C. COMPRESSING SAID COMPOSITE PAPER WEB BY MEANS OF A CONTINUOUS PRESSING SUFACE AGAINST A HEATED SMOTH FORMING SURFACE WITH SAID EXTERIOR COATED SURFACE AGAINST SAID HEATED SMOOTH FORMING SURFACE, SAID HEATED SMOOTH FORMING SURFACE BEING HEATED TO A TEMPERATURE SUFFICIENT TO BOIL SAID VOLATILE LIQUID AND SAID COMPRESSING BEING AT SUFFICIENT PRESSURE TO CONTINUOUSLY MAINTAIN SAID COATING AGAINST SAID HEATED SMOOTH FORMING SURFACE,
References Cited (Backward Citations)
US1267890A
Cited
US2614953A
Cited
US3037899A
Cited
US2999786A
Cited
US3044896A
Cited
US3110612A
Cited
US3215589A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |