Patent US3307993A successfully refreshed from Google Patents.
US3307993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of cast coating paper and simultaneously laminating
Assignee: Albemarle Paper Manufacturing Co
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Filing: 1963-11-12
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Granted: 1967-03-07
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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 21:16
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,
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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 |