US3156950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinnerets and methods of making them
Assignee: Rohm and Haas Co
•
Filing: 1962-05-09
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Granted: 1964-11-17
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Expires: 1982-05-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas Walton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:44
CPC Classifications
D; D01; D01D; D01D4/00; D01D4/02; D01D4/022; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49432
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A SPINNERET CONSISTING OF A PLURALITY OF CONTIGUOUS RODS DISPOSED PARALLEL TO ONE ANOTHER HAVING TERMINAL FACES AT THEIR ENDS, AT LEAST SOME OF SAID RODS HAVING CAPILLARY PASSAGES OF UNIFORM DIAMETER OF ABOUT 0.05 TO ABOUT 0.3 MM., THE PASSAGES EXTENDING BETWEEN AND OPENING INTO THE TERMINAL FACES OF THE RODS HAVING CAPILLARY PASSAGES, AND THE RODS BEING UNITED INTO AN INTEGRAL UNIT BY CEMENTITIOUS MATERIAL DISPOSED BETWEEN THE OUTER WALLS OF THE RODS AND FILLING THE SPACES BETWEEN THE RODS.
Claim 2
Dependent Claim
82 words
A SPINNERET CONSISTING OF A PLURALITY OF CONTIGUOUS RODS DISPOSED PARALLEL TO ONE ANOTHER HAVING TERMINAL FACES AT THEIR ENDS, AT LEAST SOME OF SAID RODS HAVING CAPILLARY PASSAGES OF UNIFORM DIAMETER OF ABOUT 0.05 TO ABOUT 0.3 MM., THE PASSAGES EXTENDING BETWEEN AND OPENING INTO THE TERMINAL FACES OF THE RODS HAVING CAPILLARY PASSAGES, AND THE RODS BEING UNITED INTO AN INTEGRAL UNIT BY CEMENTITIOUS MATERIAL DISPOSED BETWEEN THE OUTER WALLS OF THE RODS AND FILLING THE SPACES BETWEEN THE RODS.
References Cited (Backward Citations)
GB191030306A
Cited
FR431096A
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FR442630A
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GB253209A
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US2354931A
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US2372878A
Cited
US2799598A
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US2965925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |