US2671744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sized strands and method of making same
Assignee: Owens Corning
•
Filing: 1951-02-09
•
Granted: 1954-03-09
•
Expires: 1971-02-09
Abstract
No abstract record available.
Inventors
- 👤 Lawrence P Biefeld
- 👤 Joseph P Stalego
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:06
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/32; C03C25/328; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/2964; Y10T428/31504; Y10T428/31551; Y10T428/31623
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN THE METHOD OF SIZING GLASS FIBERS THE STEP COMPRISING COATING THE GLASS FIBER FILAMENTS IN ADVANCE OF THEIR BEING GATHERED INTO A STRAND IN FORMING WITH A SOLUTION CONTAINING 2-20 PERCENT BY WEIGHT OF A COMPOSITION CONSISTING ESSENTIALLY OF 99-85 PARTS BY WEIGHT OF A POLYAMIDE FORMED BY THE REACTION BETWEEN DIMERIZED AND TRIMERIZED FATTY ACIDS AND DIAMINES AND 1-15 PARTS BY WEIGHT NITROCELLULOSE AND GATHERING THE CCATED GLASS FIBER FILAMENTS INTO A BUNDLE TO FORM A STRAND.
Claim 2
Dependent Claim
79 words
IN THE METHOD OF SIZING GLASS FIBERS THE STEP COMPRISING COATING THE GLASS FIBER FILAMENTS IN ADVANCE OF THEIR BEING GATHERED INTO A STRAND IN FORMING WITH A SOLUTION CONTAINING 2-20 PERCENT BY WEIGHT OF A COMPOSITION CONSISTING ESSENTIALLY OF 99-85 PARTS BY WEIGHT OF A POLYAMIDE FORMED BY THE REACTION BETWEEN DIMERIZED AND TRIMERIZED FATTY ACIDS AND DIAMINES AND 1-15 PARTS BY WEIGHT NITROCELLULOSE AND GATHERING THE CCATED GLASS FIBER FILAMENTS INTO A BUNDLE TO FORM A STRAND.
References Cited (Backward Citations)
US2359877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-08 | 1957-09-07 | 1958-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-08 | 1961-09-07 | 1962-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-08 | 1965-09-07 | 1966-03-09 | $7700.00 | Window Closed / Lapsed |