US2816853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming plastic protuberances
Assignee: Eagle Picher Co
•
Filing: 1954-02-01
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Granted: 1957-12-17
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Expires: 1974-02-01
Abstract
No abstract record available.
Inventors
- 👤 George L Meyers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:52
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B29C65/00; B29C65/02; B29C65/18; B29C65/56; B29C65/64; B29C65/78; B29C65/7858; B29C65/7888; B29C65/7891; B29C65/7894; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/21; B29C66/303; B29C66/3032; B29C66/30325; B29C66/40; B29C66/41; B29C66/45; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/74; B29C66/742; B29C66/832; B29C66/8322; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B15/20; B32B27/00; B32B27/30; B32B27/304; B32B3/00; B32B3/26; B32B3/266; B32B3/30; B32B37/00; B32B37/14; B32B37/15; B32B37/153; B29C66/43; B29C66/438; B29C66/71; B29L; B29L2009/00; B29L2009/003; B32B2307/00; B32B2307/20; B32B2307/21; B32B2307/50; B32B2307/56; B32B2307/70; B32B2307/744; B32B2471/00; B32B2605/00; B32B2607/00; B32B37/12; B32B37/1284; B32B38/00; B32B38/0012; B32B38/12; Y; Y10; Y10S; Y10S264/00; Y10S264/73; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043; Y10T156/1044; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31739
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
THE METHOD OF FORMING COMPOSITE SHEET MATERIAL WHICN COMPRISES PASSING A STRIP OF THERMOPLASTIC MATERIAL ABOUT A PORTION, OF THE PERIPHERY OF A ROTATABLE DRUM, HEATING SUCH DRUM TO SOFTEN SUCH THERMOPLASTIC MATERIAL, PASSING TWO SUPERIMPOSED PERFORATED METAL STRIPS ABOUT SUCH DRUM AND SUPERIMPOSED UPON SUCH THERMOPLASTIC MATERIAL, WITH A THIRD IMPERFORATE STRIP ON SUCH PERFORATED STRIPS, THE PERFORATIONS OF THE LATTER BEING IN REGISTER, TENSIONSING SUCH METAL STRIP TO PRESS THE SAME AGAINST SUCH SOFTENED THERMOPLASTIC MATERIAL ON SUCH DRUM TO FORCE SUCH THERMOPLASTIC MATERIAL INTO SUCH PERFORATIONS, SUCH STRIP OF THERMOPLASTIC MATERIAL BEING APPRECIABLY THICKER THAN SAID TWO PERFORATAED METAL STRIP, COOLING SUCH THERMOPLASTIC, AND REMOVING SUCH IMPERFORATE AND UPPERMOST PERFORATE STRIPS TO EXPOSE UPSTANDING PLASTIC PROTUBERANCES PROJECTING ABOVE THE REMAINING PERFORATE SHEET.
Claim 2
Independent Claim
125 words
THE METHOD OF FORMING COMPOSITE SHEET MATERIAL WHICN COMPRISES PASSING A STRIP OF THERMOPLASTIC MATERIAL ABOUT A PORTION, OF THE PERIPHERY OF A ROTATABLE DRUM, HEATING SUCH DRUM TO SOFTEN SUCH THERMOPLASTIC MATERIAL, PASSING TWO SUPERIMPOSED PERFORATED METAL STRIPS ABOUT SUCH DRUM AND SUPERIMPOSED UPON SUCH THERMOPLASTIC MATERIAL, WITH A THIRD IMPERFORATE STRIP ON SUCH PERFORATED STRIPS, THE PERFORATIONS OF THE LATTER BEING IN REGISTER, TENSIONSING SUCH METAL STRIP TO PRESS THE SAME AGAINST SUCH SOFTENED THERMOPLASTIC MATERIAL ON SUCH DRUM TO FORCE SUCH THERMOPLASTIC MATERIAL INTO SUCH PERFORATIONS, SUCH STRIP OF THERMOPLASTIC MATERIAL BEING APPRECIABLY THICKER THAN SAID TWO PERFORATAED METAL STRIP, COOLING SUCH THERMOPLASTIC, AND REMOVING SUCH IMPERFORATE AND UPPERMOST PERFORATE STRIPS TO EXPOSE UPSTANDING PLASTIC PROTUBERANCES PROJECTING ABOVE THE REMAINING PERFORATE SHEET.
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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) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |