US2651292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic cylinder hammer and control therefor
Assignee: Individual
•
Filing: 1952-01-25
•
Granted: 1953-09-08
•
Expires: 1972-01-25
Abstract
No abstract record available.
Inventors
- 👤 Walter V Cornett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:37
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/06; E01C23/12; E01C23/122; E01C23/124; E02; E02D; E02D3/00; E02D3/02; E02D3/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-07 | 1957-03-09 | 1957-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-07 | 1961-03-09 | 1961-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-07 | 1965-03-09 | 1965-09-08 | $7700.00 | Window Closed / Lapsed |