Patent US3343159A successfully refreshed from Google Patents.
Patent US3294981A successfully refreshed from Google Patents.
US2991196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sized glass fiber products
Assignee: Owens Corning
•
Filing: 1950-12-12
•
Granted: 1961-07-04
•
Expires: 1970-12-12
Abstract
No abstract record available.
Inventors
- 👤 Lawrence P Biefeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:21
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/27; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/31504; Y10T428/31551; Y10T428/31645
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
GLASS FIBERS HAVING A THIN FILM ON THE SURFACES THEREOF IN THE FORM OF A SIZE WITH A BUTADIENE-STYRENE COPOLYMER IN ADMIXTURE WITH A CATIONIC AMINE LUBRICANT HAVING AN ORGANIC GROUP ATTACHED DIRECTLY TO THE BASIC NITROGEN ATOM CONTAINING MORE THAN 8 CARBON ATOMS AND AN UNSATURATED CARBON TO CARBON LINKAGE.
Claim 2
Dependent Claim
51 words
GLASS FIBERS HAVING A THIN FILM ON THE SURFACES THEREOF IN THE FORM OF A SIZE WITH A BUTADIENE-STYRENE COPOLYMER IN ADMIXTURE WITH A CATIONIC AMINE LUBRICANT HAVING AN ORGANIC GROUP ATTACHED DIRECTLY TO THE BASIC NITROGEN ATOM CONTAINING MORE THAN 8 CARBON ATOMS AND AN UNSATURATED CARBON TO CARBON LINKAGE.
References Cited (Backward Citations)
US2273040A
Cited
US2356542A
Cited
GB590698A
Cited
US2392805A
Cited
US2446119A
Cited
US2459742A
Cited
US2513268A
Cited
US2544667A
Cited
US2567135A
Cited
US2552910A
Cited
US2523759A
Cited
US2549220A
Cited
US2468086A
Cited
US2673823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |