Patent US1429861A successfully refreshed from Google Patents.
US1429861A
Expired / Lapsed
US
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Screw driver
Assignee: Individual
•
Filing: 1921-09-01
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Granted: 1922-09-19
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Expires: 1941-09-01
Abstract
No abstract record available.
Inventors
- 👤 Carl M Flodin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:56
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/0007; B25B23/0042; Y; Y10; Y10S; Y10S279/00; Y10S279/904; Y10T; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T279/17888
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) | 1925-09-18 | 1926-03-20 | 1926-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-09-18 | 1930-03-20 | 1930-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-09-18 | 1934-03-20 | 1934-09-19 | $7700.00 | Window Closed / Lapsed |