Patent US2438841A successfully refreshed from Google Patents.
US2438841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compact
Assignee: NUVOPLAS Corp
•
Filing: 1944-12-12
•
Granted: 1948-03-30
•
Expires: 1964-12-12
Abstract
No abstract record available.
Inventors
- 👤 Casalino Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:10
CPC Classifications
A; A45; A45D; A45D33/00; A45D33/22; A45D33/24; Y; Y10; Y10S; Y10S220/00; Y10S220/26
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1008523A
Cited
US1416223A
Cited
US1798620A
Cited
US1863856A
Cited
DE634008C
Cited
US2362120A
Cited
US2366009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-30 | 1951-09-29 | 1952-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-30 | 1955-09-29 | 1956-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-30 | 1959-09-29 | 1960-03-30 | $7700.00 | Window Closed / Lapsed |