US2912055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weeder
Assignee: Individual
•
Filing: 1955-04-14
•
Granted: 1959-11-10
•
Expires: 1975-04-14
Abstract
No abstract record available.
Inventors
- 👤 Buddingh Cornelius
- 👤 Marinus J Buddingh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:16
CPC Classifications
A; A01; A01B; A01B39/00; A01B39/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US149371A
Cited
US430077A
Cited
US481841A
Cited
US622162A
Cited
GB189820898A
Cited
US692585A
Cited
US888348A
Cited
US1076398A
Cited
US1542963A
Cited
US2393190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |