Patent US2723936A successfully refreshed from Google Patents.
US2723936A
Expired / Lapsed
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Knurled seam and method of forming the same
Assignee: Continental Can Co Inc
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Filing: 1952-05-06
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Granted: 1955-11-15
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Expires: 1972-05-06
Abstract
No abstract record available.
Inventors
- 👤 Ryan Edgil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:03
CPC Classifications
B; B65; B65D; B65D65/00; B65D65/02; B65D65/14; B29; B29C; B29C65/00; B29C65/48; B29C65/78; B29C65/7858; B29C65/7888; B29C65/7894; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/432; B29C66/4322; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1023; Y10T156/1036; Y10T428/00; Y10T428/24; Y10T428/24752
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
THE METHOD OF FORMING A SEAM BETWEEN OVERLAPPING PORTIONS OF FLEXIBLE SHEET MATERIAL WHICH COMPRISES SUBJECTING ONE OF THE SEAM FORMING PORTIONS TO A KNURLING TOOL TO FORM THEREIN POCKETS FOR RECEIVING THE ADHESIVE, APPLYING A PASTE ADHESIVE OVER THE KNURLED AREA SUFFICIENT TO FILL THE POCKETS, AND PRESSING THE SEAM FORMING AREA OF THE OTHER PORTION OF THE MATERIAL INTO FACE-TO-FACE ENGAGEMENT WITH THE KNURLED AREA TO PERMIT THE INTERPOSED LAYER OF ADHESIVE BETWEEN THE SURFACES OF THE MATERIAL TO FORM A CONTINUOUS FILM AND BOND THE SURFACES TOGETHER WHEN IT IS SET.
Claim 2
Independent Claim
94 words
THE METHOD OF FORMING A SEAM BETWEEN OVERLAPPING PORTIONS OF FLEXIBLE SHEET MATERIAL WHICH COMPRISES SUBJECTING ONE OF THE SEAM FORMING PORTIONS TO A KNURLING TOOL TO FORM THEREIN POCKETS FOR RECEIVING THE ADHESIVE, APPLYING A PASTE ADHESIVE OVER THE KNURLED AREA SUFFICIENT TO FILL THE POCKETS, AND PRESSING THE SEAM FORMING AREA OF THE OTHER PORTION OF THE MATERIAL INTO FACE-TO-FACE ENGAGEMENT WITH THE KNURLED AREA TO PERMIT THE INTERPOSED LAYER OF ADHESIVE BETWEEN THE SURFACES OF THE MATERIAL TO FORM A CONTINUOUS FILM AND BOND THE SURFACES TOGETHER WHEN IT IS SET.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |