US3413173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Upper welding and cutting machines
Assignee: United Shoe Machinery Corp
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Filing: 1965-08-24
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Granted: 1968-11-26
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Expires: 1985-08-24
Abstract
No abstract record available.
Inventors
- 👤 Frank C Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:00
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/04; A; A43; A43D; A43D8/00; A43D8/02; A43D8/04; A43D8/08; B26; B26F; B26F3/00; B26F3/06; B29C65/74; B29C65/741; B29C65/7415; B29C65/7416; B29C66/00; B29C66/80; B29C66/82; B29C66/822; B29C66/8221; B29C66/8225; B29C66/83; B29C66/832; B29C66/8322; B29C66/90; B29C66/92; B29C66/924; B29C66/9241; B29C66/92441; B29C66/92443; B29C66/92445; B29C66/9261; B29C66/92651; B29C65/743; B29C66/824; B29C66/8242; B29L; B29L2031/00; B29L2031/48; B29L2031/50; B29L2031/505; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1313
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PRESS FOR OPERATING UPON A MULTI-LAYER WORKPIECE COMPRISING A WORK SUPPORT, FIRST AND SECOND PRESSERS, A KNIFE MOUNTED ON EACH PRESSER, MEANS FOR MOVING THE PRESSERS TOWARD THE WORK SUPPORT SO AS TO PRESS THE KNIVES INTO ENGAGEMENT WITH THE UPPERMOST LAYER OF THE WORKPIECE, MEANS FOR ESTABLISHING A HIGH FREQUENCY ELECTRIC FIELD BETWEEN THE WORK SUPPORT AND THE KNIVES AND MEANS FOR BRINGING ABOUT MOVEMENT OF ONE OF THE PRESSERS AFTER THE HIGH FREQUENCY ELECTRIC FIELD HAS BEEN ESTABLISHED FOR A PREDETERMINED TIME TO PRESS A CUTTING EDGE PORTION OF ONE OF THE KNIVES ENTIRELY THROUGH THE WORKPIECE.
Claim 2
Dependent Claim
100 words
A PRESS FOR OPERATING UPON A MULTI-LAYER WORKPIECE COMPRISING A WORK SUPPORT, FIRST AND SECOND PRESSERS, A KNIFE MOUNTED ON EACH PRESSER, MEANS FOR MOVING THE PRESSERS TOWARD THE WORK SUPPORT SO AS TO PRESS THE KNIVES INTO ENGAGEMENT WITH THE UPPERMOST LAYER OF THE WORKPIECE, MEANS FOR ESTABLISHING A HIGH FREQUENCY ELECTRIC FIELD BETWEEN THE WORK SUPPORT AND THE KNIVES AND MEANS FOR BRINGING ABOUT MOVEMENT OF ONE OF THE PRESSERS AFTER THE HIGH FREQUENCY ELECTRIC FIELD HAS BEEN ESTABLISHED FOR A PREDETERMINED TIME TO PRESS A CUTTING EDGE PORTION OF ONE OF THE KNIVES ENTIRELY THROUGH THE WORKPIECE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |