US2354970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work holder
Assignee: VOLKEL BROS MACHINE WORKS
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Filing: 1943-11-10
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Granted: 1944-08-01
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Expires: 1963-11-10
Abstract
No abstract record available.
Inventors
- 👤 Frank G Volkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:09
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/06; B23; B23Q; B23Q3/00; B23Q3/02; B23Q3/10; B23Q3/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-08-01 | 1948-01-31 | 1948-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-08-01 | 1952-01-31 | 1952-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-08-01 | 1956-01-31 | 1956-08-01 | $7700.00 | Window Closed / Lapsed |