US2736561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holders for rotary tools
Assignee: Elastic Stop Nut Corp
•
Filing: 1951-11-21
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Granted: 1956-02-28
•
Expires: 1971-11-21
Abstract
No abstract record available.
Inventors
- 👤 Aage C C Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:12
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/44; B23G1/46; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17666; Y10T279/17692; Y10T279/17743; Y10T279/17752; Y10T279/17761; Y10T408/00; Y10T408/94; Y10T408/95
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US283745A
Cited
US974239A
Cited
US1105553A
Cited
US1133795A
Cited
US1174997A
Cited
GB159069A
Cited
FR555056A
Cited
US2320360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |