US2802408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary material-working implements
Assignee: SEAMAN ANDWALL CORP
•
Filing: 1951-10-05
•
Granted: 1957-08-13
•
Expires: 1971-10-05
Abstract
No abstract record available.
Inventors
- 👤 Harry J Seaman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:08
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/78; E02F3/783; A; A01; A01B; A01B33/00; A01B33/08; A01B33/14; A01B33/142; E02F3/18; E02F3/22; E02F3/24; E02F3/246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |