Patent US4041277A successfully refreshed from Google Patents.
Patent US3252437A successfully refreshed from Google Patents.
US3252437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work guiding devices for sewing machines
Assignee: Singer Co
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Filing: 1964-06-15
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Granted: 1966-05-24
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Charles G Pickett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:08
CPC Classifications
D; D05; D05B; D05B35/00; D05B35/10; D05D; D05D2207/00; D05D2207/02; D05D2207/04; Y; Y10; Y10S; Y10S112/00; Y10S112/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A DEVICE FOR GUIDING WORK FABRICS INCLUDING A WORK FABRIC ACCOMMODATING CHANNEL AND A WORK EDGE GUIDING SURFACE EXTENDING SUBSTANTIALLY NORMAL TO SAID WORK GUIDING CHANNEL, A FIRST AIR NOZZLE ASSOCIATED WITH SAID GUIDGUIDING DEVICE, SAID FIRST AIR NOZZLE TERMINATING IN SAID WORK ACCOMMODATING CHANNEL AND INCLUDED TOWARD SAID WORK EDGE GUIDING DEVICE, SAID SECOND AIR NOZZLE TERWITH SAID WORK GUIDING DEVICE, SAID SECOND AIR NOZZLE TERMINATING AT ONE SIDE OF SAID WORK ACCOMMODATING CHANNEL SUBSTANTIALLY NORMAL TO SAID WORK GUIDING SURFACE, A CONNEL AND CONTIGUOUS TO SAID WORK GUIDING SURFACE, A CONDUIT CONNECTED TO SAID FIRST AIR NOZZLE AND TERMINATING IN ALIGNMENT WITH AND AT THE OPPOSITE SIDE OF SAID WORK ACCOMMODATING CHANNEL FROM SAID SECOND AIR NOZZLE, AND MEANS FOR DELIVERING AIR UNDER PRESSURE TO SAID SECOND AIR NOZZLE WHEREBY SAID AIR UNDER PRESSURE WILL BE DELIVERED FROM SAID SECOND AIR NOZZLE TO SAID FIRST AIR NOZZLE WHEN SAID WORK FABRIC IS OUT OF ALIGNMENT WITH SAID WORK EDGE GUIDING SURFACE.
Claim 2
Independent Claim
163 words
A DEVICE FOR GUIDING WORK FABRICS INCLUDING A WORK FABRIC ACCOMMODATING CHANNEL AND A WORK EDGE GUIDING SURFACE EXTENDING SUBSTANTIALLY NORMAL TO SAID WORK GUIDING CHANNEL, A FIRST AIR NOZZLE ASSOCIATED WITH SAID GUIDGUIDING DEVICE, SAID FIRST AIR NOZZLE TERMINATING IN SAID WORK ACCOMMODATING CHANNEL AND INCLUDED TOWARD SAID WORK EDGE GUIDING DEVICE, SAID SECOND AIR NOZZLE TERWITH SAID WORK GUIDING DEVICE, SAID SECOND AIR NOZZLE TERMINATING AT ONE SIDE OF SAID WORK ACCOMMODATING CHANNEL SUBSTANTIALLY NORMAL TO SAID WORK GUIDING SURFACE, A CONNEL AND CONTIGUOUS TO SAID WORK GUIDING SURFACE, A CONDUIT CONNECTED TO SAID FIRST AIR NOZZLE AND TERMINATING IN ALIGNMENT WITH AND AT THE OPPOSITE SIDE OF SAID WORK ACCOMMODATING CHANNEL FROM SAID SECOND AIR NOZZLE, AND MEANS FOR DELIVERING AIR UNDER PRESSURE TO SAID SECOND AIR NOZZLE WHEREBY SAID AIR UNDER PRESSURE WILL BE DELIVERED FROM SAID SECOND AIR NOZZLE TO SAID FIRST AIR NOZZLE WHEN SAID WORK FABRIC IS OUT OF ALIGNMENT WITH SAID WORK EDGE GUIDING SURFACE.
References Cited (Backward Citations)
US2539131A
Cited
GB937512A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |