Patent US2567795A successfully refreshed from Google Patents.
US2567795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable mast structure
Assignee: Lee C Moore Corp
•
Filing: 1946-10-09
•
Granted: 1951-09-11
•
Expires: 1966-10-09
Abstract
No abstract record available.
Inventors
- 👤 Homer J Woolslayer
- 👤 Jenkins Cecil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:23
CPC Classifications
E; E21; E21B; E21B15/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US446744A
Cited
US1462746A
Cited
US1439786A
Cited
US2225561A
Cited
US2268796A
Cited
US2271578A
Cited
US2332479A
Cited
US2403080A
Cited
US2475933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |