US3308504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinnerets
Assignee: Uniroyal Inc
•
Filing: 1965-07-22
•
Granted: 1967-03-14
•
Expires: 1985-07-22
Abstract
No abstract record available.
Inventors
- 👤 Shichman Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:11
CPC Classifications
D; D01; D01D; D01D4/00; D01D4/02; D01D4/027; B; B23; B23P; B23P15/00; B23P15/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A SPINNERET PROVIDED WITH AT LEAST ONE CUSPED EXTRUSION ORIFICE HAVING AT LEAST THREE SIDE WALLS WHICH ARE CONVEX INWARDLY OF THE ORIFICE, SAID ORIFICE BEING DEFINED BETWEEN A SET OF PINS OF CIRCULAR CROSS-SECTION ARRANGED IN A RING FORMATION WITH EACH PIN TANGENT TO TWO OF THE
Claim 2
Dependent Claim
48 words
A SPINNERET PROVIDED WITH AT LEAST ONE CUSPED EXTRUSION ORIFICE HAVING AT LEAST THREE SIDE WALLS WHICH ARE CONVEX INWARDLY OF THE ORIFICE, SAID ORIFICE BEING DEFINED BETWEEN A SET OF PINS OF CIRCULAR CROSS-SECTION ARRANGED IN A RING FORMATION WITH EACH PIN TANGENT TO TWO OF THE
References Cited (Backward Citations)
US1773969A
Cited
US1902953A
Cited
US2422994A
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US3102439A
Cited
US3174364A
Cited
US3197812A
Cited
US3095258A
Cited
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 |