Patent US2279281A successfully refreshed from Google Patents.
Patent US3092873A successfully refreshed from Google Patents.
US3092873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinneret
Assignee: Celanese Corp
•
Filing: 1958-10-17
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Granted: 1963-06-11
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Expires: 1978-10-17
Abstract
No abstract record available.
Inventors
- 👤 James A Kay
- 👤 Clarence E Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:07
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/253; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2973
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A SPINNERETTE HAVING AT LEAST ONE JET OPENING WITH A PERIPHERY DEFINED BY A PAIR OF SUBSTANTIALLY STRAIGHT INTERSECTING PORTIONS AND A CONVEX ARCUATE PORTION EXTENDING ACROSS THE INSIDE OF THE ANGLE SUBTENDED BY SAID STRAIGHT PORTIONS.
Claim 2
Dependent Claim
37 words
A SPINNERETTE HAVING AT LEAST ONE JET OPENING WITH A PERIPHERY DEFINED BY A PAIR OF SUBSTANTIALLY STRAIGHT INTERSECTING PORTIONS AND A CONVEX ARCUATE PORTION EXTENDING ACROSS THE INSIDE OF THE ANGLE SUBTENDED BY SAID STRAIGHT PORTIONS.
References Cited (Backward Citations)
US2541181A
Cited
US2434533A
Cited
US2736920A
Cited
US2804645A
Cited
US2829027A
Cited
US2825120A
Cited
US2838364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |