US2437109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dipping machine
Assignee: BLACK ROCK MANUFACTURING Co
•
Filing: 1941-02-25
•
Granted: 1948-03-02
•
Expires: 1961-02-25
Abstract
No abstract record available.
Inventors
- 👤 Lloyd E Maquat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:54
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/14; B29K; B29K2021/00
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-02 | 1951-09-01 | 1952-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-02 | 1955-09-01 | 1956-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-02 | 1959-09-01 | 1960-03-02 | $7700.00 | Window Closed / Lapsed |