US2855668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weed diggers
Assignee: Individual
•
Filing: 1954-08-12
•
Granted: 1958-10-14
•
Expires: 1974-08-12
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Ottenad
- 👤 Jr Arthur L Ottenad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:08
CPC Classifications
A; A01; A01B; A01B1/00; A01B1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US143084A
Cited
US500538A
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US533787A
Cited
US542584A
Cited
US843399A
Cited
US1251059A
Cited
US1620510A
Cited
US1644426A
Cited
US2533693A
Cited
US2738580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |