US2828240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging material
Assignee: General Foods Corp
•
Filing: 1954-10-22
•
Granted: 1958-03-25
•
Expires: 1974-10-22
Abstract
No abstract record available.
Inventors
- 👤 Robert De S Couch
- 👤 Yezek Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:44
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/30; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/35; D21H17/46; D21H17/54; D21H17/55; D21H17/60; D21H17/61; D21H23/00; D21H23/02; D21H23/22; D21H23/32; D21H23/42; Y; Y10; Y10T; Y10T428/00; Y10T428/27; Y10T428/31504; Y10T428/31801; Y10T428/31804; Y10T428/31808
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A PROCESS FOR MAKING LAMINATED PACKAGING MATERIAL HIGHLY RESISTANT TO THE TRANSFER OF WATER VAPOR THERETHROUGH WHICH COMPRISES JUXTAPOSING TWO FLAT PLIES, ONE COMPRISING 5-40 POINT BOARD IN THE RANGE OF 20-160 LBS. WEIGHT PER THOUSAND SQUARE FEET AND PREVIOUSLY IMPREGNATED WITH A MOISTURE-RESISTANT MATERIAL AMOUNTING TO AT LEAST 10% BY WEIGHT OF THE BOARD THE MAJOR PROTION OF WHICH IS ABSORBED INTO THE BOARD BENEATH ITS OPPOSITE SURFACES, THE OTHER PLY COMPRISING PAPER IN THE RANGE OF 8-90 LBS. WEIGHT PER THREE THOUSAND SQUARE FEET, COATING THE JUXTAPOSED SURFACE OF ONE OF SAID PLIES WITH A MOISTURE-RESISTANT ADHESIVE MATERIAL DISTRIBUTED SUBSTANTIALLY UNIFORMLY OVER SAID SURFACES, AND PRESSING THE PLIES TOGETHER.
Claim 2
Dependent Claim
17 words
THE PROCESS DEFINED IN CLAIM 3, SAID IMPREGNANT BEING PARAFFINIC WAX AND SAID ADHESIVE BEING MICROCRYSTALLINE WAX.
References Cited (Backward Citations)
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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) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |