US2660724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable hammering machine
Assignee: Individual
•
Filing: 1950-07-20
•
Granted: 1953-12-01
•
Expires: 1970-07-20
Abstract
No abstract record available.
Inventors
- 👤 Glenn A Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:33
CPC Classifications
B; B27; B27F; B27F7/00; B27F7/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1312518A
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US1060377A
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US1509492A
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US1684882A
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US1654014A
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US2033516A
Cited
US2090895A
Cited
US2234831A
Cited
US2457984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |