Patent US1995623A successfully refreshed from Google Patents.
US1995623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of impregnated articles
Assignee: Brown Co
•
Filing: 1932-01-20
•
Granted: 1935-03-26
•
Expires: 1952-01-20
Abstract
No abstract record available.
Inventors
- 👤 George A Richter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:23
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/04; D21H13/00; D21H13/36; D21H13/38; D21H13/42; D21H17/61; D21H21/00; D21H21/14; D21H21/34; D21H25/00; D21H25/04; D21H25/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1938-03-25 | 1938-09-24 | 1939-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-03-25 | 1942-09-24 | 1943-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-03-25 | 1946-09-24 | 1947-03-26 | $7700.00 | Window Closed / Lapsed |