US3298339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buttonholing device for sewing machines
Assignee: Singer Co
•
Filing: 1964-07-16
•
Granted: 1967-01-17
•
Expires: 1984-07-16
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:47
CPC Classifications
D; D05; D05B; D05B3/00; D05B3/24; D10; D10B; D10B2501/00; D10B2501/06; D10B2501/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A WORK SHIFTING MECHANISM FOR A SEWING MACHINE HAVING A FRAME FORMED WITH A FLAT WORK SUPPORTING BED, AND STITCH FORMING INSTRUMENTALITIES AND ACTUATING MECHANISM THEREFOR CARRIED IN SAID FRAME, SAID WORK SHIFTING MECHANISM COMPRISING, AN ELONGATE MEMBER DISPOSED SUBSTANTIALLY PERPENDICULAR TO SAID FLAT WORK SUPPORTING BED, MEANS CARRIED ON SAID SEWING MACHINE FRAME AND PROVIDING PIVOTAL SUPPORT FOR SAID MEMBER ON MUTUALLY PERPENDICULAR AXES PARALLEL TO SAID WORK SUPPORTING BED, DRIVE MEANS OPERATED BY SAID SEWING MACHINE ACTUATING MECHANISM FOR IMPARTING SWINGING MOVEMENT TO SAID MEMBER ABOUT SAID MUTUALLY PERPENDICULAR AXES, AND A WORK ENGAGING FOOT SECURED TO SAID MEMBER AND ADAPTED TO OVERLIE SAID WORKING SUPPORTING BED.
Claim 2
Dependent Claim
109 words
A WORK SHIFTING MECHANISM FOR A SEWING MACHINE HAVING A FRAME FORMED WITH A FLAT WORK SUPPORTING BED, AND STITCH FORMING INSTRUMENTALITIES AND ACTUATING MECHANISM THEREFOR CARRIED IN SAID FRAME, SAID WORK SHIFTING MECHANISM COMPRISING, AN ELONGATE MEMBER DISPOSED SUBSTANTIALLY PERPENDICULAR TO SAID FLAT WORK SUPPORTING BED, MEANS CARRIED ON SAID SEWING MACHINE FRAME AND PROVIDING PIVOTAL SUPPORT FOR SAID MEMBER ON MUTUALLY PERPENDICULAR AXES PARALLEL TO SAID WORK SUPPORTING BED, DRIVE MEANS OPERATED BY SAID SEWING MACHINE ACTUATING MECHANISM FOR IMPARTING SWINGING MOVEMENT TO SAID MEMBER ABOUT SAID MUTUALLY PERPENDICULAR AXES, AND A WORK ENGAGING FOOT SECURED TO SAID MEMBER AND ADAPTED TO OVERLIE SAID WORKING SUPPORTING BED.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |