US2955970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion coating
Assignee: Lowe Paper Co
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Filing: 1957-10-25
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Granted: 1960-10-11
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Expires: 1977-10-25
Abstract
No abstract record available.
Inventors
- 👤 John C Rice
- 👤 Thompson Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:50
CPC Classifications
B; B32; B32B; B32B37/00; B32B37/14; B32B37/15; B32B37/153; B29; B29C; B29C59/00; B29C59/08; B32B27/00; B32B37/24; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C08J7/056; D; D21; D21H; D21H19/00; D21H19/80; D21H19/82; D21H19/828; D21H23/00; D21H23/02; D21H23/22; D21H23/46; D21H23/48; D21H5/00; D21H5/0005; D21H5/0042; D21H5/0045; C08J2323/00; C08J2323/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
79 words
A METHOD OF AFFIXING A SUBSTANTIALLY NON-POLYMERIZING POLAR HYDROPHILIC TOPCOATING COMPOSITION TO A FRESHLY LOCATED HYDROPHOBIC POLYTHYLENE SURFACE WHICH COMPRISES FEEDING A PAPER WEB INTO A NIP FORMED BY A COOLING DRUM AND A RUBBER FACE BACKING PRESSURE ROLLER, LEADING TO THE SAME NIP BETWEEN THE COOLING DRUM AND THE PAPER WEB, A SHEET OF MOLTEN POLYTHELENE MATERIAL TO FORM A POLYETHYLENE FILM AND IMMEDIATELY APPLYING A SUBSTANTIALLY NON-POLYMERIZATING, POLAR HYDROPHILIC TOPCOATING COMPOSITION TO THE POLYTHELEN FILM SO FORMED.
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) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |