US3525531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool retainer
Assignee: Atlas Copco AB
•
Filing: 1968-12-19
•
Granted: 1970-08-25
•
Expires: 1988-12-19
Abstract
No abstract record available.
Inventors
- 👤 Gosta Ivar Ekstrom
- 👤 Jarl Joel Blomberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:12
CPC Classifications
B; B25; B25D; B25D17/00; B25D17/08; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17042; Y10T279/17094
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1580617A
Cited
US2767528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-24 | 1974-02-23 | 1974-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-24 | 1978-02-23 | 1978-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-24 | 1982-02-23 | 1982-08-25 | $7700.00 | Window Closed / Lapsed |