US2694969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encircling shield for groundworking tools
Assignee: Individual
•
Filing: 1952-03-24
•
Granted: 1954-11-23
•
Expires: 1972-03-24
Abstract
No abstract record available.
Inventors
- 👤 Robert C Chattin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:10
CPC Classifications
A; A01; A01B; A01B39/00; A01B39/08; A01B39/085; A01B33/00; A01B33/08; A01B33/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US51031A
Cited
US1414842A
Cited
US1639463A
Cited
US2317188A
Cited
US2370777A
Cited
US2616348A
Cited
US2597111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-22 | 1958-05-24 | 1958-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-22 | 1962-05-24 | 1962-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-22 | 1966-05-24 | 1966-11-23 | $7700.00 | Window Closed / Lapsed |