US2666720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing starch from the binder on glass cloth
Assignee: Glass Fibers Inc
•
Filing: 1951-05-28
•
Granted: 1954-01-19
•
Expires: 1971-05-28
Abstract
No abstract record available.
Inventors
- 👤 Emil H Balz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:04
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
IN A PROCESS FOR THE REMOVAL OF HYDROPHILIC MATERIALS FROM A BINDER OF GLASS CLOTH THE STEP OF SOAKING THE GLASS CLOTH IN AN AQUEOUS SOLUTION OF UREA.
Claim 2
Dependent Claim
28 words
IN A PROCESS FOR THE REMOVAL OF HYDROPHILIC MATERIALS FROM A BINDER OF GLASS CLOTH THE STEP OF SOAKING THE GLASS CLOTH IN AN AQUEOUS SOLUTION OF UREA.
References Cited (Backward Citations)
US2407483A
Cited
US2607359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |