US2751831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil pulverizers
Assignee: Individual
•
Filing: 1953-06-04
•
Granted: 1956-06-26
•
Expires: 1973-06-04
Abstract
No abstract record available.
Inventors
- 👤 Fay E Null
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:21
CPC Classifications
A; A01; A01B; A01B77/00; Y; Y10; Y10S; Y10S37/00; Y10S37/904
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US922535A
Cited
US895332A
Cited
US1233442A
Cited
US1302883A
Cited
US1611919A
Cited
US1850357A
Cited
US2007646A
Cited
US2368331A
Cited
GB602061A
Cited
US2466084A
Cited
US2693746A
Cited
US2701105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-26 | 1959-12-26 | 1960-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-26 | 1963-12-26 | 1964-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-26 | 1967-12-26 | 1968-06-26 | $7700.00 | Window Closed / Lapsed |