US2568835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thumbtack extractor
Assignee: Individual
•
Filing: 1949-09-27
•
Granted: 1951-09-25
•
Expires: 1969-09-27
Abstract
No abstract record available.
Inventors
- 👤 Ira L Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:21
CPC Classifications
B; B25; B25C; B25C11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1680607A
Cited
DE613499C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |