Patent US3308776A successfully refreshed from Google Patents.
US3308776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewing machines having bobbin thread replenishing means
Assignee: Singer Co
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Filing: 1964-05-06
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Granted: 1967-03-14
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Expires: 1984-05-06
Abstract
No abstract record available.
Inventors
- 👤 Michael F Ivanko
- 👤 Jr Robert W Busch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:52
CPC Classifications
D; D05; D05B; D05B59/00; D05B57/00; D05B57/26; D05B73/00; D05B73/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN A LOCKSTITCH SEWING MACHINE, A LOOP TAKER MECHANISM HAVING A BOBBIN MOUNTED INSIDE, ROTATABLE MEANS FOR RESTRAINING THREAD, DISCONNECTABLE MEANS FOR ROTATING THE BOBBIN AND FOR ROTATING THE MEANS FOR RESTRAINING THREAD, AND A LOOP-SEIZING BEAK WHICH MOVES IN A CIRCULAR PATH, MEANS CARRYING THREAD FROM A FIRST SOURCE POSITIONED IN PROXIMITY TO THE LOOP TAKER MECHANISM FOR INTRODUCING THREAD TO THE BOBBIN FOR A WINDING OPERATION BY MEANS OF THE LOOP-SEIZING BEAK IN COOPERATION WITH THE MEANS FOR RESTRAINING THREAD, THE MEANS FOR ROTATING THE BOBBIN AND FOR ROTATING THE MEANS FOR RESTRAINING THREAD BEING CONNECTED THERETO, A NEEDLE MECHANISM CARRYING THREAD FROM A SECOND SOURCE FOR PASSING THROUGH GOODS TO BE SEWN AND FOR PRESENTING LOOPS OF THREAD TO THE LOOP-SEIZING BEAK FOR PASSING AROUND THE BOBBIN, THE MEANS FOR ROTATING THE BOBBIN AND FOR ROTATING THE MEANS FOR RESTRAINING THREAD BEING DISCONNECTED THEREFROM TO PERMIT PASSAGE OF THREAD
Claim 2
Dependent Claim
152 words
IN A LOCKSTITCH SEWING MACHINE, A LOOP TAKER MECHANISM HAVING A BOBBIN MOUNTED INSIDE, ROTATABLE MEANS FOR RESTRAINING THREAD, DISCONNECTABLE MEANS FOR ROTATING THE BOBBIN AND FOR ROTATING THE MEANS FOR RESTRAINING THREAD, AND A LOOP-SEIZING BEAK WHICH MOVES IN A CIRCULAR PATH, MEANS CARRYING THREAD FROM A FIRST SOURCE POSITIONED IN PROXIMITY TO THE LOOP TAKER MECHANISM FOR INTRODUCING THREAD TO THE BOBBIN FOR A WINDING OPERATION BY MEANS OF THE LOOP-SEIZING BEAK IN COOPERATION WITH THE MEANS FOR RESTRAINING THREAD, THE MEANS FOR ROTATING THE BOBBIN AND FOR ROTATING THE MEANS FOR RESTRAINING THREAD BEING CONNECTED THERETO, A NEEDLE MECHANISM CARRYING THREAD FROM A SECOND SOURCE FOR PASSING THROUGH GOODS TO BE SEWN AND FOR PRESENTING LOOPS OF THREAD TO THE LOOP-SEIZING BEAK FOR PASSING AROUND THE BOBBIN, THE MEANS FOR ROTATING THE BOBBIN AND FOR ROTATING THE MEANS FOR RESTRAINING THREAD BEING DISCONNECTED THEREFROM TO PERMIT PASSAGE OF THREAD
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |