US939019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined shovel and hoe.
Assignee: Individual
•
Filing: 1909-04-13
•
Granted: 1909-11-02
•
Expires: 1929-04-13
Abstract
No abstract record available.
Inventors
- 👤 Derrick Barnard Hartwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:02
CPC Classifications
A; A01; A01B; A01B1/00; A01B1/22; B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/107; B23B31/1072; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17923; Y10T403/00; Y10T403/59; Y10T403/70; Y10T403/7075; Y10T403/7077; Y10T403/7079; Y10T403/7083
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) | 1912-11-01 | 1913-05-03 | 1913-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-11-01 | 1917-05-03 | 1917-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-11-01 | 1921-05-03 | 1921-11-02 | $7700.00 | Window Closed / Lapsed |