US3178250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber improving process and product
Assignee: GAF Chemicals Corp
•
Filing: 1961-07-10
•
Granted: 1965-04-13
•
Expires: 1981-07-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Ellis
- 👤 George M Gantz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:45
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/244; D06M13/248; D06M13/272; D06M13/278; D06P; D06P5/00; D06P5/02; D06P5/04; Y; Y10; Y10S; Y10S8/00; Y10S8/02; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A PROCESS FOR IMPROVING THE PROPERTIES OF FIBER CONTAINING A MEMBER OF THE GROUP CONSISTING OF REACTIVE HYDROGEN AND HALOGEN ATOMS AND UNSATURATED LINKAGES AND DYED WITH A NON-FIBER REACTIVE DYESTUFF COMPRISING TREATING SUCH DYED FIBER WITH AN AQUEOUS ALKALINE MEDIUM CONTAINING A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
47 words
A PROCESS FOR IMPROVING THE PROPERTIES OF FIBER CONTAINING A MEMBER OF THE GROUP CONSISTING OF REACTIVE HYDROGEN AND HALOGEN ATOMS AND UNSATURATED LINKAGES AND DYED WITH A NON-FIBER REACTIVE DYESTUFF COMPRISING TREATING SUCH DYED FIBER WITH AN AQUEOUS ALKALINE MEDIUM CONTAINING A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
CA625790A
Cited
US3046075A
Cited
US2474808A
Cited
US2985501A
Cited
US3005852A
Cited
US3062831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |