US3287195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of pressure welding thermoplastic film
Assignee: Continental Can Co Inc
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Filing: 1961-11-17
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Granted: 1966-11-22
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Expires: 1981-11-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Piazze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:01
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/13; B29C66/137; B29C65/00; B29C65/02; B29C65/06; B29C65/0681; B29C65/74; B29C65/743; B29C65/7437; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81411; B29C66/81421; B29C66/81422; B29C66/83; B29C66/832; B29C66/8322; B29C66/71; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1054; Y10T156/1056; Y10T156/1057; Y10T83/00; Y10T83/929; Y10T83/9411; Y10T83/9447
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A METHOD OF FORMING A JOINT BETWEEN SUPERPOSED THEREMOPLASTIC SHEETS COMPRISING THE STEPS OF (1) PLACING A PLURAITY OF THERMOPLASTIC SHEETS IN STACKED RELATION TO EACH OTHER ON A SUPPORT MEMBER; (2) APPLYING A HOLLOW PUNCH MEMBER HAVING A ROUNDED WORKING EDGE TO A LOCALIZED AREA OF SAID STACKED SHEETS; (3) JOINING PORTIONS OF AT LEAST SOME OF SAID SHEETS IN INTERLOCKED RELATION BY APPLICATION OF FORCE THROUGH SAID PUNCH MEMBER (4) FORMING HEAT WELDS BETWEEN SAID INTERLOCKED PORTIONS BY CONTINUED APPLICATION OF FORCE THROUGH SAID PUNCH MEMBERS; (5) AT LAST PARTIALLY SEVERING SAID STACKED SHEETS IN SAID LOCALIZED AREA FROM THE REMAINING AREA OF THE STACKED SHEETS.
Claim 2
Independent Claim
108 words
A METHOD OF FORMING A JOINT BETWEEN SUPERPOSED THEREMOPLASTIC SHEETS COMPRISING THE STEPS OF (1) PLACING A PLURAITY OF THERMOPLASTIC SHEETS IN STACKED RELATION TO EACH OTHER ON A SUPPORT MEMBER; (2) APPLYING A HOLLOW PUNCH MEMBER HAVING A ROUNDED WORKING EDGE TO A LOCALIZED AREA OF SAID STACKED SHEETS; (3) JOINING PORTIONS OF AT LEAST SOME OF SAID SHEETS IN INTERLOCKED RELATION BY APPLICATION OF FORCE THROUGH SAID PUNCH MEMBER (4) FORMING HEAT WELDS BETWEEN SAID INTERLOCKED PORTIONS BY CONTINUED APPLICATION OF FORCE THROUGH SAID PUNCH MEMBERS; (5) AT LAST PARTIALLY SEVERING SAID STACKED SHEETS IN SAID LOCALIZED AREA FROM THE REMAINING AREA OF THE STACKED SHEETS.
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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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |