Patent US2936800A successfully refreshed from Google Patents.
US2936800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Twin ripsaw with oppositely driven blades and power feed
Assignee: YATES AMERICAN MACHINE CO
•
Filing: 1957-09-12
•
Granted: 1960-05-17
•
Expires: 1977-09-12
Abstract
No abstract record available.
Inventors
- 👤 William A Eschenburg
- 👤 Stauber Alvin George
- 👤 Harry C Marks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:45
CPC Classifications
B; B23; B23D; B23D45/00; B23D45/10; B27; B27B; B27B25/00; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6476; Y10T83/6489; Y10T83/6579; Y10T83/6584; Y10T83/6606; Y10T83/6633
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US285407A
Cited
US550825A
Cited
US811009A
Cited
US1074559A
Cited
US1132840A
Cited
US1241871A
Cited
US1573705A
Cited
US1552665A
Cited
US1700400A
Cited
US1770106A
Cited
US1816485A
Cited
US1796369A
Cited
US2585957A
Cited
US2623559A
Cited
US2613699A
Cited
US2829683A
Cited
US2780254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |