US2531571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of glass yarn
Assignee: Owens Corning
•
Filing: 1945-04-21
•
Granted: 1950-11-28
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Expires: 1965-04-21
Abstract
No abstract record available.
Inventors
- 👤 Hyde James Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:29
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2962
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
44 words
IN THE METHOD OF GROUPING GLASS FIBERS INTO A YARN, THE STEP OF TRETING SUCH FIBERS WITH A SOLUTION OF A HYDROLYZABLE ORGANOMONOSILANE IN AN ORGANIC SOLVENT THEREFOR, THE ORGANIC SUBSTITUENTS OF THE SILANE BEING ALKYL RADICALS ATTACHED TO SILICON THROUGH DIRECT CARBON LINKAGE.
References Cited (Backward Citations)
US2439689A
Cited
US2234986A
Cited
US2133238A
Cited
US2272588A
Cited
US2258218A
Cited
GB543434A
Cited
US2245824A
Cited
US2306222A
Cited
US2380996A
Cited
US2380995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |