Patent US2611718A successfully refreshed from Google Patents.
US2611718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass fibers coated with werner type complex and method of making same
Assignee: Owens Corning
•
Filing: 1947-03-14
•
Granted: 1952-09-23
•
Expires: 1967-03-14
Abstract
No abstract record available.
Inventors
- 👤 Steinman Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:14
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/38; Y; Y10; Y10S; Y10S220/00; Y10S220/14; Y10S220/23; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2958; Y10T428/2964
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
AN ARTICLE OF MANUFACTURE COMPRISING GLASS FIBERS AND A COATING INSOLUBILIZED ON THE GLASS FIBER SURFACES TO RENDER THE SURFACES MORE RECEPTIVE TO POLYESTER RESINS, SAID COATING COMPRISING A COMPLEX COMPOUND OF THE WERNER TYPE IN WHICH A TRIVALENT NUCLEAR CHROMIUM ATOM IS COORDINATED WITH AN UNSATURATED ACIDO GROUP HAVING FROM 3 TO 7 CARBON ATOMS IN WHICH THE UNSATURATED GROUP IS BETWEEN THE ALPHA AND BETA CARBON ATOMS.
Claim 2
Dependent Claim
69 words
AN ARTICLE OF MANUFACTURE COMPRISING GLASS FIBERS AND A COATING INSOLUBILIZED ON THE GLASS FIBER SURFACES TO RENDER THE SURFACES MORE RECEPTIVE TO POLYESTER RESINS, SAID COATING COMPRISING A COMPLEX COMPOUND OF THE WERNER TYPE IN WHICH A TRIVALENT NUCLEAR CHROMIUM ATOM IS COORDINATED WITH AN UNSATURATED ACIDO GROUP HAVING FROM 3 TO 7 CARBON ATOMS IN WHICH THE UNSATURATED GROUP IS BETWEEN THE ALPHA AND BETA CARBON ATOMS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-23 | 1956-03-24 | 1956-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-23 | 1960-03-24 | 1960-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-23 | 1964-03-24 | 1964-09-23 | $7700.00 | Window Closed / Lapsed |