Patent US3346916A successfully refreshed from Google Patents.
US3346916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinneret for production of synthetic grass yarn
Assignee: Monsanto Co
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Filing: 1966-01-17
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Granted: 1967-10-17
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Expires: 1986-01-17
Abstract
No abstract record available.
Inventors
- 👤 Donald L Elbert
- 👤 Robert T Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:33
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/253
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A SPINNERET FOR PRODUCING DELUSTERED MONOFILAMENT RIBBONS HAVING NOVEL CROSS-SECTIONS, COMPRISING SPINNERET RETAINING MEANS AND A SPINNERET MOUNTED IN SAID RETAINING MEANS, SAID SPINNERET HAVING AT LEAST ONE ESSENTIALLY RECTANGULAR SLOTTED ORIFICE, SAID ORIFICE HAVING OPPOSED PROFILED WALLS IN CLOSE PROXIMITY TO EACH OTHER, SAID WALLS HAVING A PLURALITY OF SELECTIVELY SPACEF GROOVES, SAID GROOVES, BEING STAGGERED ON OPPOSITE WALLS WHEREBY EACH GROOVE FACES A FLAT SURFACE ON THE OTHER WALL, SAID ORIFICE HAVING DIMENSIONS DETERMINED BY THE RATIOS OF B/A RANGING FROM 0.8 TO 4.0 AND D/C RANGING FROM 1.0 TO 4.0 WHEN THE RATIO OF C/A IS BETWEEN 0.25 AND 0.90.
Claim 2
Dependent Claim
103 words
A SPINNERET FOR PRODUCING DELUSTERED MONOFILAMENT RIBBONS HAVING NOVEL CROSS-SECTIONS, COMPRISING SPINNERET RETAINING MEANS AND A SPINNERET MOUNTED IN SAID RETAINING MEANS, SAID SPINNERET HAVING AT LEAST ONE ESSENTIALLY RECTANGULAR SLOTTED ORIFICE, SAID ORIFICE HAVING OPPOSED PROFILED WALLS IN CLOSE PROXIMITY TO EACH OTHER, SAID WALLS HAVING A PLURALITY OF SELECTIVELY SPACEF GROOVES, SAID GROOVES, BEING STAGGERED ON OPPOSITE WALLS WHEREBY EACH GROOVE FACES A FLAT SURFACE ON THE OTHER WALL, SAID ORIFICE HAVING DIMENSIONS DETERMINED BY THE RATIOS OF B/A RANGING FROM 0.8 TO 4.0 AND D/C RANGING FROM 1.0 TO 4.0 WHEN THE RATIO OF C/A IS BETWEEN 0.25 AND 0.90.
References Cited (Backward Citations)
US2000388A
Cited
US2831748A
Cited
US2959839A
Cited
US3109195A
Cited
US3219739A
Cited
US3249669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |