US2652770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power press
Assignee: Wilkins and Mitchell Ltd
•
Filing: 1950-08-08
•
Granted: 1953-09-22
•
Expires: 1970-08-08
Abstract
No abstract record available.
Inventors
- 👤 Edward W Wilkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:08
CPC Classifications
B; B30; B30B; B30B1/00; B30B1/26; B21; B21D; B21D22/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US794430A
Cited
US803692A
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DE543509C
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US1959865A
Cited
US1960166A
Cited
US1977549A
Cited
US2173086A
Cited
US2348403A
Cited
US2512246A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |