US2545173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring-biased tooth mounting for rotary plows
Assignee: Individual
•
Filing: 1947-11-18
•
Granted: 1951-03-13
•
Expires: 1967-11-18
Abstract
No abstract record available.
Inventors
- 👤 Franklin P Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:55
CPC Classifications
A; A01; A01D; A01D78/00; A01D78/08; A01D78/10; A01D78/1064; A01B; A01B33/00; A01B33/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US75310A
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US493398A
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US802708A
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CH77205A
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GB140801A
Cited
US1294346A
Cited
US1388953A
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US1610587A
Cited
US1611919A
Cited
US2205188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-12 | 1954-09-11 | 1955-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-12 | 1958-09-11 | 1959-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-12 | 1962-09-11 | 1963-03-13 | $7700.00 | Window Closed / Lapsed |