Patent US2568870A successfully refreshed from Google Patents.
US2568870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Saw
Assignee: Individual
•
Filing: 1945-10-31
•
Granted: 1951-09-25
•
Expires: 1965-10-31
Abstract
No abstract record available.
Inventors
- 👤 Lerned F Ronan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:23
CPC Classifications
B; B23; B23D; B23D61/00; B23D61/12; B23D61/121; B23D61/1217; B23D61/02; B23D61/021; B23D61/0212; B23D61/1216
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US72983A
Cited
US147609A
Cited
US336739A
Cited
FR741168A
Cited
US817361A
Cited
US1850478A
Cited
US2227864A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |