US2615220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drum clamp device
Assignee: Individual
•
Filing: 1950-05-23
•
Granted: 1952-10-28
•
Expires: 1970-05-23
Abstract
No abstract record available.
Inventors
- 👤 Jack G Imparato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:54
CPC Classifications
B; B60; B60P; B60P7/00; B60P7/06; B60P7/08; B60P7/12; Y; Y10; Y10T; Y10T24/00; Y10T24/29; Y10T24/44; Y10T24/44966; Y10T24/44974
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US727913A
Cited
US1440613A
Cited
US1562612A
Cited
US1712226A
Cited
US1834495A
Cited
US2105213A
Cited
US2384112A
Cited
US2483038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |