Patent US2668568A successfully refreshed from Google Patents.
US2668568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Edger and finisher
Assignee: Individual
•
Filing: 1951-11-30
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Granted: 1954-02-09
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Expires: 1971-11-30
Abstract
No abstract record available.
Inventors
- 👤 Lena M Budd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:36
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/10; B23Q35/101; B23Q35/102; B23Q35/104
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US114720A
Cited
US500167A
Cited
US1099894A
Cited
US1128274A
Cited
GB213764A
Cited
US1435758A
Cited
US2308996A
Cited
US2334342A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-08 | 1957-08-10 | 1958-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-08 | 1961-08-10 | 1962-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-08 | 1965-08-10 | 1966-02-09 | $7700.00 | Window Closed / Lapsed |