Patent US2555409A successfully refreshed from Google Patents.
US2555409A
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US
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Heat sealed ruffled article
Assignee: Union Carbide Corp
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Filing: 1946-12-07
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Granted: 1951-06-05
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Expires: 1966-12-07
Abstract
No abstract record available.
Inventors
- 👤 Lee C Hosfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:41
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/04; B29C53/00; B29C53/36; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/21; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/70; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C66/818; B29C66/8187; B29C66/81871; B29C66/82; B29C66/822; B29C66/8221; B29C66/8226; B29C66/82263; B29C66/83; B29C66/832; B29C66/8322; B29C66/84; B29C66/845; B29C69/00; B29C48/00; B29C48/001; B29C48/0019; B29C48/03; B29C48/07; B29C48/08; B29C65/78; B29C65/7858; B29C65/7888; B29C65/7891; B29C66/71; B29C66/72; B29C66/729; B29L; B29L2016/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1015; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24686; Y10T428/24802; Y10T428/24826; Y10T428/24843; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891; Y10T428/31909
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A UNITARY PERMANENT FUFFED ARTICLE COMPRISING A SHEET-LIKE ELEMENT OF A THERMOPLASTIC DIELECTRIC MATERIAL, A PORTION OF SUCH ELEMENT WITHIN A SELECTED AREA THEREOF BEING FOLDED ON ITSELF TO FORM A SUCCESSION OF INTERCONNECTED RUFFLES, THE MATERIAL FORMING THE RESPECTIVE SIDES OF EACH FOLDED AREA BEING PERMANENTLY UNITED BY AT LEAST ONE SPOT WELD PRODUCED BY HEAT AND PRESSURE IN A LIMITED ZONE WITHIN EACH SUCH FOLDED AREA.
Claim 2
Dependent Claim
68 words
A UNITARY PERMANENT FUFFED ARTICLE COMPRISING A SHEET-LIKE ELEMENT OF A THERMOPLASTIC DIELECTRIC MATERIAL, A PORTION OF SUCH ELEMENT WITHIN A SELECTED AREA THEREOF BEING FOLDED ON ITSELF TO FORM A SUCCESSION OF INTERCONNECTED RUFFLES, THE MATERIAL FORMING THE RESPECTIVE SIDES OF EACH FOLDED AREA BEING PERMANENTLY UNITED BY AT LEAST ONE SPOT WELD PRODUCED BY HEAT AND PRESSURE IN A LIMITED ZONE WITHIN EACH SUCH FOLDED AREA.
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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) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |