Patent US3572270A successfully refreshed from Google Patents.
US3572270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stitched seams
Assignee: Singer Co
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Filing: 1969-10-28
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Granted: 1971-03-23
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Expires: 1989-10-28
Abstract
Abstract A STITCHED SEAM IN WHICH A SINGLE ROW OF SECURING STITCHES PARALLEL TO THE EDGES OF TWO PLIES OF FABRIC ALSO ANCHORS A PAIR OF EDGE COVERING THREADS EACH EXTENDING ABOUT THE EDGE OF A RESPECTIVE ONE OF THE PLIES OF FABRIC.
Inventors
- 👤 Stanley J Ketterer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:32
CPC Classifications
A; A41; A41D; A41D27/00; A41D27/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |