US2065715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible mast construction
Assignee: Individual
•
Filing: 1935-12-09
•
Granted: 1936-12-29
•
Expires: 1955-12-09
Abstract
No abstract record available.
Inventors
- 👤 Peter F Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:36
CPC Classifications
B; B63; B63B; B63B15/00; B63H; B63H21/00; B63H21/32; B63J; B63J2/00; B63J2/02; B63J2/10; B63B2015/0016; B63B2015/005; B63B2015/0058
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) | 1939-12-29 | 1940-06-29 | 1940-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-12-29 | 1944-06-29 | 1944-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-12-29 | 1948-06-29 | 1948-12-29 | $7700.00 | Window Closed / Lapsed |