US2997362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid vat dye compositions
Assignee: Beazer East Inc
•
Filing: 1959-02-16
•
Granted: 1961-08-22
•
Expires: 1979-02-16
Abstract
No abstract record available.
Inventors
- 👤 Herman P Baumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:44
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0077; Y; Y10; Y10S; Y10S8/00; Y10S8/908
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A SOLID, STORAGE STABLE DYEING COMPOSITION FOR HOME USE CONSISTING ESSENTIALLY OF 2-10 PARTS BY WEIGHT OF VAT DYESTUFF POWDER, 80-100 PARTS BY WEIGHT OF SODIUM ORTHO-SILICATE, 60-70 PARTS BY WEIGHT OF SODIUM HYDROSULFITE AND 1-5 PARTS BY WEIGHT OF SOLID NON-IONIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
49 words
A SOLID, STORAGE STABLE DYEING COMPOSITION FOR HOME USE CONSISTING ESSENTIALLY OF 2-10 PARTS BY WEIGHT OF VAT DYESTUFF POWDER, 80-100 PARTS BY WEIGHT OF SODIUM ORTHO-SILICATE, 60-70 PARTS BY WEIGHT OF SODIUM HYDROSULFITE AND 1-5 PARTS BY WEIGHT OF SOLID NON-IONIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
US2768051A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |