US2640985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thumbtack applicator
Assignee: Individual
•
Filing: 1949-03-22
•
Granted: 1953-06-09
•
Expires: 1969-03-22
Abstract
No abstract record available.
Inventors
- 👤 Bygbjerg Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:49
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1306107A
Cited
US877165A
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US1146105A
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US1485413A
Cited
US1588989A
Cited
US2009580A
Cited
US2014726A
Cited
US2078012A
Cited
US2237458A
Cited
US2479190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |