Patent US3526158A successfully refreshed from Google Patents.
US3526158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-speed power taper drill
Assignee: OMARK WINSLOW AEROSPACE TOOL CO
•
Filing: 1968-07-10
•
Granted: 1970-09-01
•
Expires: 1988-07-10
Abstract
No abstract record available.
Inventors
- 👤 Ralph D Adams
- 👤 Rudolf R Schindler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:40
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/12; B23Q5/14; B23Q5/145; B23B; B23B45/00; B23B45/04; B23Q5/06; Y; Y10; Y10T; Y10T408/00; Y10T408/16; Y10T408/165; Y10T408/55; Y10T408/561; Y10T408/5623; Y10T408/56245; Y10T408/65; Y10T408/675
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |