US2419154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beachcombing apparatus
Assignee: Individual
•
Filing: 1943-12-10
•
Granted: 1947-04-15
•
Expires: 1963-12-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas L O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:02
CPC Classifications
E; E01; E01H; E01H12/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE128294C
Cited
US1157931A
Cited
US1274244A
Cited
US1442979A
Cited
AU3078330A
Cited
US2093148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-14 | 1950-10-14 | 1951-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-14 | 1954-10-14 | 1955-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-14 | 1958-10-14 | 1959-04-15 | $7700.00 | Window Closed / Lapsed |