Patent US5261059A successfully refreshed from Google Patents.
Patent US3304896A successfully refreshed from Google Patents.
US3304896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Presser foot for sewing buttonholes
Assignee: Singer Co
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Filing: 1966-02-07
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Granted: 1967-02-21
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Expires: 1986-02-07
Abstract
No abstract record available.
Inventors
- 👤 Manfred R Laidig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:06
CPC Classifications
D; D05; D05B; D05B29/00; D05B29/06; D05B29/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A SEWING MACHINE PRESSER FOOT COMPRISING A SHANK MEMBER ADAPTED TO BE CONNECTED TO THE PRESSER BAR OF A SEWING MACHINE, AN APERTURED WALL FORMED AS PART OF SAID SHANK MEMBER, A U-SHAPED YOKE, AN APERTURED WALL FORMED AS PART OF SAID YOKE, A PIVOT-RIVET PASSING THROUGH APERTURES IN BOTH OF SAID WALLS, A TILT STOP RIVET PASSING THROUGH APERTURES IN BOTH OF SAID WALLS, ONE OF THE APERTURES THROUGH WHICH SAID TILT STOP RIVET PASSES BEING LARGER IN DIAMETER THAN THE DIAMETER OF SAID TILT STOP RIVET AND THEREBY PERMITTING SAID YOKE TO HAVE LIMITED TILTING MOVEMENT WITH RESPECT TO SAID SHANK, A PAIR OF PINTLES CARRIED ON SAID YOKE, AND A SOLE PLATE MOUNTED FOR SEE-SAW MOTION ON SAID PINTLES.
Claim 2
Dependent Claim
122 words
A SEWING MACHINE PRESSER FOOT COMPRISING A SHANK MEMBER ADAPTED TO BE CONNECTED TO THE PRESSER BAR OF A SEWING MACHINE, AN APERTURED WALL FORMED AS PART OF SAID SHANK MEMBER, A U-SHAPED YOKE, AN APERTURED WALL FORMED AS PART OF SAID YOKE, A PIVOT-RIVET PASSING THROUGH APERTURES IN BOTH OF SAID WALLS, A TILT STOP RIVET PASSING THROUGH APERTURES IN BOTH OF SAID WALLS, ONE OF THE APERTURES THROUGH WHICH SAID TILT STOP RIVET PASSES BEING LARGER IN DIAMETER THAN THE DIAMETER OF SAID TILT STOP RIVET AND THEREBY PERMITTING SAID YOKE TO HAVE LIMITED TILTING MOVEMENT WITH RESPECT TO SAID SHANK, A PAIR OF PINTLES CARRIED ON SAID YOKE, AND A SOLE PLATE MOUNTED FOR SEE-SAW MOTION ON SAID PINTLES.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |