US1476209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plowshare sharpener
Assignee: Individual
•
Filing: 1922-07-06
•
Granted: 1923-12-04
•
Expires: 1942-07-06
Abstract
No abstract record available.
Inventors
- 👤 Ole O Moen
- 👤 Finger T Gronvold
- 👤 Alfred M Call
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:13
CPC Classifications
B; B21; B21H; B21H7/00; B21H7/06; B21B; B21B13/00; B21B13/18; B21B13/20; B21J; B21J7/00; B21J7/02; B21J7/14; B21J7/16
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) | 1926-12-03 | 1927-06-04 | 1927-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-12-03 | 1931-06-04 | 1931-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-12-03 | 1935-06-04 | 1935-12-04 | $7700.00 | Window Closed / Lapsed |