Patent US2541029A successfully refreshed from Google Patents.
Patent US2070075A successfully refreshed from Google Patents.
US2070075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control
Assignee: Individual
•
Filing: 1934-04-30
•
Granted: 1937-02-09
•
Expires: 1954-04-30
Abstract
No abstract record available.
Inventors
- 👤 William J Besler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:42
CPC Classifications
F; F22; F22B; F22B35/00; F22B35/06; F22B35/10; F22B35/104
Claims Analysis
Total Claims: 0
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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) | 1940-02-09 | 1940-08-10 | 1941-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-02-09 | 1944-08-10 | 1945-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-02-09 | 1948-08-10 | 1949-02-09 | $7700.00 | Window Closed / Lapsed |