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Patent US3090335A successfully refreshed from Google Patents.
US3090335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary hook for sewing machines
Assignee: Necchi SpA
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Filing: 1960-07-11
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Granted: 1963-05-21
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Expires: 1980-07-11
Abstract
No abstract record available.
Inventors
- 👤 Bono Luigi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:15
CPC Classifications
D; D05; D05B; D05B57/00; D05B57/08; D05B57/10; D05B57/14; D05B57/143
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A ROTARY HOOK ASSEMBLY OF THE TYPE INCLUDING A SHAFT AND A ROTARY HOOK BODY SECURED TO THE SHAFT, A BOBBIN CASE SEATED IN SAID ROTARY HOOK BODY, A BOBBIN CASE HOLDER RING SEATED ON SAID ROTARY HOOK BODY AND RETAINING SAID BOBBIN CASE THEREIN, SAID BOBBIN CASE HOLDER RING HAVING CIRCUMFERENTIALLY SPACED SEATS, AND A FASTENER CONNECTED TO SAID ROTARY HOOK BODY HAVING FINGERS EXTENDING UP ALONGSIDE SAID BOBBIN CASE HOLDER RING AND TERMINATING IN ENDS RELEASABLY ENGAGING SAID SEATS, SAID BOBBIN CASE HOLDER RING HAVING FINGER END RECEIVING GROOVED DISPOSED IN CIRCUMFERENTIALLY SPACED RELATION TO SAID SEATS, WHEREBY SAID BOBBIN CASE HOLDER RING MAY BE RELEASED BY ROTATING SAID FASTENER, SAID FASTENER HAVING A BASE PORTION AND RESILIENTLY CLAMPED BETWEEN SAID ROTARY HOOK BODY AND SAID SHAFT.
Claim 2
Dependent Claim
130 words
IN A ROTARY HOOK ASSEMBLY OF THE TYPE INCLUDING A SHAFT AND A ROTARY HOOK BODY SECURED TO THE SHAFT, A BOBBIN CASE SEATED IN SAID ROTARY HOOK BODY, A BOBBIN CASE HOLDER RING SEATED ON SAID ROTARY HOOK BODY AND RETAINING SAID BOBBIN CASE THEREIN, SAID BOBBIN CASE HOLDER RING HAVING CIRCUMFERENTIALLY SPACED SEATS, AND A FASTENER CONNECTED TO SAID ROTARY HOOK BODY HAVING FINGERS EXTENDING UP ALONGSIDE SAID BOBBIN CASE HOLDER RING AND TERMINATING IN ENDS RELEASABLY ENGAGING SAID SEATS, SAID BOBBIN CASE HOLDER RING HAVING FINGER END RECEIVING GROOVED DISPOSED IN CIRCUMFERENTIALLY SPACED RELATION TO SAID SEATS, WHEREBY SAID BOBBIN CASE HOLDER RING MAY BE RELEASED BY ROTATING SAID FASTENER, SAID FASTENER HAVING A BASE PORTION AND RESILIENTLY CLAMPED BETWEEN SAID ROTARY HOOK BODY AND SAID SHAFT.
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |