US3173625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bobbins for sewing machines
Assignee: Singer Co
•
Filing: 1963-01-07
•
Granted: 1965-03-16
•
Expires: 1983-01-07
Abstract
No abstract record available.
Inventors
- 👤 Frederick G Creter
- 👤 Stanley J Ketterer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:07
CPC Classifications
D; D05; D05B; D05B57/00; D05B57/26; D05B57/265; D05B59/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A TWO-PART BOBBIN ADAPTED FOR USE WITH A SEWING MACHINE HAVING A LOOP TAKER, SAID SEWING MACHINE BEING OF THE CLASS WHEREIN THE BOBBIN CAN BE WOUND WITHOUT REMOVING IT FROM THE LOOP TAKER, SAID BOBBIN COMPRISING A BODY PART HAVING A FIRST ANNULAR HUB PORTION PROVIDED WITH A CONCENTRICALLY LOCATED THREADED HOLE, A REDUCED DIAMETER END FORMED ON SAID HUB PORTION, A FLANGE PART, A THREADED STUD FORMED ON SAID FLANGE PART AND BEING OF SUCH SIZE AND SHAPE AS TO ENGAGE SAID THREADED HOLE, THE BASE OF SAID THREADED STUD BEING SURROUNDED BY A SECOND ANNULAR HUB PORTION INTEGRAL WITH SAID STUD AND DEFINING A CYLINDRICAL GROOVE SURROUNDING SAID STUD AND SAID GROOVE BEING OF SUCH SIZE AS TO RECEIVE THE SAID REDUCED DIAMETER END OF THE FIRST HUB PORTION ON SAID BODY PART, SAID HUB PORTIONS BEING OF SUBSTANTIALLY EQUAL OUTER DIAMETERS AND PROVIDING A WINDING SURFACE FOR WINDING THREAD THEREON.
Claim 2
Dependent Claim
154 words
A TWO-PART BOBBIN ADAPTED FOR USE WITH A SEWING MACHINE HAVING A LOOP TAKER, SAID SEWING MACHINE BEING OF THE CLASS WHEREIN THE BOBBIN CAN BE WOUND WITHOUT REMOVING IT FROM THE LOOP TAKER, SAID BOBBIN COMPRISING A BODY PART HAVING A FIRST ANNULAR HUB PORTION PROVIDED WITH A CONCENTRICALLY LOCATED THREADED HOLE, A REDUCED DIAMETER END FORMED ON SAID HUB PORTION, A FLANGE PART, A THREADED STUD FORMED ON SAID FLANGE PART AND BEING OF SUCH SIZE AND SHAPE AS TO ENGAGE SAID THREADED HOLE, THE BASE OF SAID THREADED STUD BEING SURROUNDED BY A SECOND ANNULAR HUB PORTION INTEGRAL WITH SAID STUD AND DEFINING A CYLINDRICAL GROOVE SURROUNDING SAID STUD AND SAID GROOVE BEING OF SUCH SIZE AS TO RECEIVE THE SAID REDUCED DIAMETER END OF THE FIRST HUB PORTION ON SAID BODY PART, SAID HUB PORTIONS BEING OF SUBSTANTIALLY EQUAL OUTER DIAMETERS AND PROVIDING A WINDING SURFACE FOR WINDING THREAD THEREON.
References Cited (Backward Citations)
US487704A
Cited
US507124A
Cited
US1324171A
Cited
GB123963A
Cited
US1560120A
Cited
US1593012A
Cited
US1611472A
Cited
US1924745A
Cited
FR765748A
Cited
US2340574A
Cited
US2475399A
Cited
US2573598A
Cited
US2643828A
Cited
US3041005A
Cited
US3106176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |