Patent US3020186A successfully refreshed from Google Patents.
US3020186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminating method and means for manufacturing synthetic resinous foam pads
Assignee: Individual
•
Filing: 1959-05-21
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Granted: 1962-02-06
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Expires: 1979-05-21
Abstract
No abstract record available.
Inventors
- 👤 Lawrence Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:40
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10S; Y10S206/00; Y10S206/82; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1054; Y10T156/108
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
THE METHOD OF FORMING A RESILIENT PAD FROM HEAT SEALABLE MATERIALS COMPRISING THE STEPS OF: PROVIDING A FIRST LAMINA OF MATERIAL HAVING A CALENDERED SURFACE; PROVIDING A SECOND LAMINA OF FLEXIBLE HEAT SEALED SYNTHETIC RESINOUS MATERIAL; LAMINATING SAID FIRST AND SECOND LAMINAE USING A PERSSURE SENSITIVE ADHEAIVE; PROVIDING A THIRD LAMINA OF SYNTHETIC RESINOUS FOAM MATERIAL WHICH IS HEAT SEALABLE WITH RESPECT TO SAID SECOND LAMINA; PLACING SAID THIRD LAMINA IN SUPERIMPOSED POSITIONS UPON THE EXPOSED SURFACE OF SAID SECOND LAMINA; CUTTING PADS FROM SAID THIRD LAMINA AND SIMULTANEOUSLY HEAT SEALING THE PERIPHERAL EDGES THEREOF TO THE ADJACENT SURFACE OF SAID SECOND LAMINA; REMOVING THE UNSEALED PORTIONS OF SAID THIRD LAMINA FROM CONTACT WITH SAID SECOND LAMINA, AND;STRIPPING THE REMAINING PORTIONS OF SAID SECOND LAMINA FROM CONTACT WITH SAID FIRST LAMINA.
Claim 2
Independent Claim
131 words
THE METHOD OF FORMING A RESILIENT PAD FROM HEAT SEALABLE MATERIALS COMPRISING THE STEPS OF: PROVIDING A FIRST LAMINA OF MATERIAL HAVING A CALENDERED SURFACE; PROVIDING A SECOND LAMINA OF FLEXIBLE HEAT SEALED SYNTHETIC RESINOUS MATERIAL; LAMINATING SAID FIRST AND SECOND LAMINAE USING A PERSSURE SENSITIVE ADHEAIVE; PROVIDING A THIRD LAMINA OF SYNTHETIC RESINOUS FOAM MATERIAL WHICH IS HEAT SEALABLE WITH RESPECT TO SAID SECOND LAMINA; PLACING SAID THIRD LAMINA IN SUPERIMPOSED POSITIONS UPON THE EXPOSED SURFACE OF SAID SECOND LAMINA; CUTTING PADS FROM SAID THIRD LAMINA AND SIMULTANEOUSLY HEAT SEALING THE PERIPHERAL EDGES THEREOF TO THE ADJACENT SURFACE OF SAID SECOND LAMINA; REMOVING THE UNSEALED PORTIONS OF SAID THIRD LAMINA FROM CONTACT WITH SAID SECOND LAMINA, AND;STRIPPING THE REMAINING PORTIONS OF SAID SECOND LAMINA FROM CONTACT WITH SAID FIRST LAMINA.
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) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |