Patent US3233572A successfully refreshed from Google Patents.
US3233572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slip-on shoe for a sewing machine foot
Assignee: Individual
•
Filing: 1965-02-26
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Granted: 1966-02-08
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Expires: 1985-02-26
Abstract
No abstract record available.
Inventors
- 👤 Kalish Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:25
CPC Classifications
D; D05; D05B; D05B29/00; D05B29/06; D05D; D05D2209/00; D05D2209/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A SLIP-ON SHOE OF ONE-PIECE TETRAFLUOROETHYLENE POLYMER CONSTRUCTION FOR A SEWING MACHINE FOOT, THE COMBINATION OF A LONGITUDINAL BOTTOM PANEL AND A BACK PANEL, SAID BACK PANEL BEING PERPENDICULAR TO SAID BOTTOM PANEL, SAID BACK PANEL HAVING A BOTTOM EDGE ADJACENT A REAR END EDGE OF SAID BOTTOM PANEL, AN OPENING WITHIN SAID BOTTOM PANEL FOR ALLOWING CLEARANCE FOR A VERTICALLY MOVABLE SEWING NEEDLE, HOOKING MEANS AT THE FORWARD END OF SAID BOTTOM PANEL FOR SECUREMENT OF THE SAME TO THE FORWARD END OF A SEWING MACHINE FOOT AND CLAMPING MEANS ON SAID BACK PANEL FOR SECUREMENT OF THE REAR END OF SAID SHOE TO THE REAR END OF A SEWING MACHINE FOOT, SAID OPENING COMPRISING A SLOT COMMUNICATING WITH THE FORWARD EDGE OF SAID BOTTOM PANEL TO FORM A PAIR OF BIFURCATED TOE PIECES, EACH OF SAID TOE PIECES BEING UPWARDLY DIAGONALLY INCLINED AND
Claim 2
Dependent Claim
146 words
IN A SLIP-ON SHOE OF ONE-PIECE TETRAFLUOROETHYLENE POLYMER CONSTRUCTION FOR A SEWING MACHINE FOOT, THE COMBINATION OF A LONGITUDINAL BOTTOM PANEL AND A BACK PANEL, SAID BACK PANEL BEING PERPENDICULAR TO SAID BOTTOM PANEL, SAID BACK PANEL HAVING A BOTTOM EDGE ADJACENT A REAR END EDGE OF SAID BOTTOM PANEL, AN OPENING WITHIN SAID BOTTOM PANEL FOR ALLOWING CLEARANCE FOR A VERTICALLY MOVABLE SEWING NEEDLE, HOOKING MEANS AT THE FORWARD END OF SAID BOTTOM PANEL FOR SECUREMENT OF THE SAME TO THE FORWARD END OF A SEWING MACHINE FOOT AND CLAMPING MEANS ON SAID BACK PANEL FOR SECUREMENT OF THE REAR END OF SAID SHOE TO THE REAR END OF A SEWING MACHINE FOOT, SAID OPENING COMPRISING A SLOT COMMUNICATING WITH THE FORWARD EDGE OF SAID BOTTOM PANEL TO FORM A PAIR OF BIFURCATED TOE PIECES, EACH OF SAID TOE PIECES BEING UPWARDLY DIAGONALLY INCLINED AND
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |