Patent US6588210B2 successfully refreshed from Google Patents.
Patent US2730160A successfully refreshed from Google Patents.
US2730160A
Expired / Lapsed
US
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Apparatus for forming joints between thermoplastic sheets
Assignee: British Xylonite Co Ltd
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Filing: 1951-10-16
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Granted: 1956-01-10
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Expires: 1971-10-16
Abstract
No abstract record available.
Inventors
- 👤 Pickering Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:05
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/82; B29C66/822; B29C66/8226; B26; B26D; B26D1/00; B26D1/01; B26D1/04; B29C65/00; B29C65/02; B29C65/10; B29C65/106; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/8221; B29C66/83; B29C66/832; B29C66/8322; B65; B65B; B65B51/00; B65B51/10; B65B51/24; B29C66/01; B29C66/05; B29C66/10; B29C66/13; B29C66/137; B29C66/71; B29L; B29L2031/00; B29L2031/712; B29L2031/7128
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
APPARATUS FOR USE IN FORMING A JOINT BETWEEN SHEETS OF FLATTENED THERMOPLASTIC MATERIAL, COMPRISING A PAIR OF RELATIVELY-MOVABLE JAWS FOR RECEIVING AND CLAMPING THEREBETWEEN THE SHEETS, MEANS ADVANCING SUCH SHEETS BETWEEN THE MOVABLE JAWS, A KNIFE BLADE MOUNTED FOR RECIPROCATION IN A PLANE SPACED IN FRONT OF THE BITE BETWEEN SAID CLAMPING JAWS AND LONGITUDINALLY OF SUCH JAWS, MEANS OPERATIVELY CONNECTED WITH THE KNIFE BLADE TO RECIPROCATE SUCH BLADE, AN ANVIL MOVABLE INTO POSITION BETWEEN SAID CLAMPING JAWS AND KNIFE BLADE TO PROVIDE A SUPPORT FOR THE THERMOPLASTIC MATERIAL BETWEEN THE CLAMPING JAWS AND KNIFE BLADE AND FURTHER MEANS TO MOVE SUCH ANVIL INTO SAID LAST NAMED POSITION.
Claim 2
Dependent Claim
108 words
APPARATUS FOR USE IN FORMING A JOINT BETWEEN SHEETS OF FLATTENED THERMOPLASTIC MATERIAL, COMPRISING A PAIR OF RELATIVELY-MOVABLE JAWS FOR RECEIVING AND CLAMPING THEREBETWEEN THE SHEETS, MEANS ADVANCING SUCH SHEETS BETWEEN THE MOVABLE JAWS, A KNIFE BLADE MOUNTED FOR RECIPROCATION IN A PLANE SPACED IN FRONT OF THE BITE BETWEEN SAID CLAMPING JAWS AND LONGITUDINALLY OF SUCH JAWS, MEANS OPERATIVELY CONNECTED WITH THE KNIFE BLADE TO RECIPROCATE SUCH BLADE, AN ANVIL MOVABLE INTO POSITION BETWEEN SAID CLAMPING JAWS AND KNIFE BLADE TO PROVIDE A SUPPORT FOR THE THERMOPLASTIC MATERIAL BETWEEN THE CLAMPING JAWS AND KNIFE BLADE AND FURTHER MEANS TO MOVE SUCH ANVIL INTO SAID LAST NAMED POSITION.
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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) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |