Patent US3386402A successfully refreshed from Google Patents.
US3386402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread trimming mechanism for sewing machines
Assignee: Singer Co
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Filing: 1966-07-05
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Granted: 1968-06-04
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Expires: 1986-07-05
Abstract
No abstract record available.
Inventors
- 👤 Roger J Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:56
CPC Classifications
D; D05; D05B; D05B65/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
157 words
IN A LOCK STITCH SEWING MACHINE HAVING A VERTICALLY RECIPROCATORY THREAD CARRYING NEEDLE, A NEEDLE THREAD TAKE UP MECHANISM EFFECTIVE TO DRAW THE NEEDLE THREAD TAUT DURING UPSTROKE OF THE NEEDLE, A LOOP TAKER OPERATIVELY CONNECTED WITH SAID NEEDLE AND INCLUDING A THREAD CARRYING BOBBIN, DRIVE MEANS FOR SAID NEEDLE LOOP TAKER AND TAKE UP MECHANISM, OPERATOR INFLUENCED MEANS FOR AT WILL INTERRUPTING SAID DRIVE MEANS AND A NEEDLE POSITIONING DEVICE EFFECTIVE TO POSITION SAID NEEDLE SELECTIVELY EITHER UP OR DOWN, A TRIMMING DEVICE FOR BOTH THE NEEDLE AND BOBBIN THREADS COMPRISING A THREAD CATCHING ELEMENT SHIFTABLY SUPPORTED ON SAID SEWING MACHINE FOR MOVEMENT RELATIVELY TO SAID LOOP TAKER INTO AND OUT OF THE PATH OF NEEDLE AND BOBBIN THREADS THEREON, A THREAD CUTTER SHIFTABLY SUPPORTED ON SAID SEWING MACHINE FOR MOVEMENT RELATIVELY TO SAID LOOP TAKER, ACTUATING MEANS FOR OPERATING SAID THREAD TRIMMING DEVICE AND SAID NEEDLE POSITIONER IN CONCERT AND INCLUDING OPERATOR INFLUENCED MEANS FOR
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) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |