US3366496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food packaging process
Assignee: International Paper Co
•
Filing: 1965-07-29
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Granted: 1968-01-30
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Expires: 1985-07-29
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Bomar
- 👤 William S Mcdonald
- 👤 Hugh B Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:49
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/64; B65D5/68; B65D5/685; B65D5/4295; B65D5/44; B65D5/441; B65D5/443; B65D5/56; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24711; Y10T428/24727; Y10T428/31504; Y10T428/31801; Y10T428/31804
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN THE MANUFACTURE OF CORRUGATED PAPERBOARD CONSISTING OF A CORRUGATED MEDIUM SANDWICHED BETWEEN AN INNER AND AN OUTER LINER AND ADAPTED TO BE CONVERTED INTO PACKAGING, A PROCESS COMPRISING THE STEP OF APPLYING WAX OR A BLEND OF WAX AND THERMOPLASTIC RESIN TO THE CORRUGATING MEDIUM PRIOR TO CORRUGATING, THE STEP OF CORRUGATING THE CORRUGATING MEDIUM, THE STEP OF APPLYING AN ADHESIVE FORMULATION BETWEEN THE LINERS AND THE CORRUGATED MEDIUM, AND THE STEP OF BONDING THE LINERS AND CORRUGATED MEDIUM TOGETHER WITH HEAT AND PRESSURE, WHEREIN THE CORRUGATING MEDIUM IS MOISTURE CONDITIONED BEFORE AND AFTER THE WAX OR BLEND OF WAX AND THERMOPLASTIC RESIN IS APPLIED TO IT.
Claim 2
Dependent Claim
108 words
IN THE MANUFACTURE OF CORRUGATED PAPERBOARD CONSISTING OF A CORRUGATED MEDIUM SANDWICHED BETWEEN AN INNER AND AN OUTER LINER AND ADAPTED TO BE CONVERTED INTO PACKAGING, A PROCESS COMPRISING THE STEP OF APPLYING WAX OR A BLEND OF WAX AND THERMOPLASTIC RESIN TO THE CORRUGATING MEDIUM PRIOR TO CORRUGATING, THE STEP OF CORRUGATING THE CORRUGATING MEDIUM, THE STEP OF APPLYING AN ADHESIVE FORMULATION BETWEEN THE LINERS AND THE CORRUGATED MEDIUM, AND THE STEP OF BONDING THE LINERS AND CORRUGATED MEDIUM TOGETHER WITH HEAT AND PRESSURE, WHEREIN THE CORRUGATING MEDIUM IS MOISTURE CONDITIONED BEFORE AND AFTER THE WAX OR BLEND OF WAX AND THERMOPLASTIC RESIN IS APPLIED TO IT.
References Cited (Backward Citations)
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US2099936A
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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) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |