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US2727748A
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Assignee: Erickson Tool Co
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Filing: 1954-11-15
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Granted: 1955-12-20
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Expires: 1974-11-15
Abstract
No abstract record available.
Inventors
- 👤 Milton L Benjamin
- 👤 Stanley S Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:45
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/113; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17411; Y10T279/17487; Y10T279/17504; Y10T279/17512; Y10T279/17957
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2579082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |