Patent US2882179A successfully refreshed from Google Patents.
US2882179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating sheet material
Assignee: Johnson and Johnson
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Filing: 1955-04-06
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Granted: 1959-04-14
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Expires: 1975-04-06
Abstract
No abstract record available.
Inventors
- 👤 Benjamin B Blackford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:31
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/20; C09J7/22; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2857; Y10T428/31504; Y10T428/31826; Y10T428/31833
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
THE METHOD OF SPREADING A PRESSURE-SENSITIVE THERMOPLASTIC ADHESIVE MASS FROM A THERMOPLASTIC BANK WHICH COMPRISES INTRODUCING CONCURRENTLY A CONTINUOUS SHEET OF EASILY EXTENSIBLE PLASTIC AND A SUBSTANTIALLY INEXTENSIBLE CARRIER SHEET INTO AN ADHESIVE SPREADING ZONE FORMED BY THE SURFACE OF A ROLL MEMBER AND THE SURFACE OF A SECOND MEMBER DISPOSED CLOSELY ADJACENT SAID ROLL MEMBER WITH SUFFICIENT SPACE THEREBETWEEN TO PERMIT PASSAGE OF SAID PLASTIC AND CARRIER SHEETS AND A LAYER OF ADHESIVE MASS TO BE APPLIED THERETO, MAINTAINING A BANK OF PRESSURE-SENSITIVE THDERMOPLASTIC ADHESIVE IN SAID ZONE, AND ROTATING SAID ROLL AT SUBSTANTIALLY THE SAME PERIPHERAL SPEED AS SAID SHEET WHILE MAINTAINING THE RATIO OF THE SURFACE SPEED OF SAID ROLL MEMBER TO THE SURFACE SPEED OF SAID SECOND MEMBER ABOVE ABOUT TWO TO ONE, THEREBY TO SPREAD SAID ADHESIVE INTO A FILM THAT ADHERES TO SAID PLASTIC SHEET, DOES NOT ADHERE SUBSTANTIALLY TO THE SURFACE OF SAID SECOND MEMBER, AND DOES NOT REMOVE SAID PLASTIC FILM FROM SAID CARRIER SHEET.
Claim 2
Independent Claim
163 words
THE METHOD OF SPREADING A PRESSURE-SENSITIVE THERMOPLASTIC ADHESIVE MASS FROM A THERMOPLASTIC BANK WHICH COMPRISES INTRODUCING CONCURRENTLY A CONTINUOUS SHEET OF EASILY EXTENSIBLE PLASTIC AND A SUBSTANTIALLY INEXTENSIBLE CARRIER SHEET INTO AN ADHESIVE SPREADING ZONE FORMED BY THE SURFACE OF A ROLL MEMBER AND THE SURFACE OF A SECOND MEMBER DISPOSED CLOSELY ADJACENT SAID ROLL MEMBER WITH SUFFICIENT SPACE THEREBETWEEN TO PERMIT PASSAGE OF SAID PLASTIC AND CARRIER SHEETS AND A LAYER OF ADHESIVE MASS TO BE APPLIED THERETO, MAINTAINING A BANK OF PRESSURE-SENSITIVE THDERMOPLASTIC ADHESIVE IN SAID ZONE, AND ROTATING SAID ROLL AT SUBSTANTIALLY THE SAME PERIPHERAL SPEED AS SAID SHEET WHILE MAINTAINING THE RATIO OF THE SURFACE SPEED OF SAID ROLL MEMBER TO THE SURFACE SPEED OF SAID SECOND MEMBER ABOVE ABOUT TWO TO ONE, THEREBY TO SPREAD SAID ADHESIVE INTO A FILM THAT ADHERES TO SAID PLASTIC SHEET, DOES NOT ADHERE SUBSTANTIALLY TO THE SURFACE OF SAID SECOND MEMBER, AND DOES NOT REMOVE SAID PLASTIC FILM FROM SAID CARRIER SHEET.
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) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |