US2507204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pilot device for rotary tools
Assignee: Individual
•
Filing: 1948-11-17
•
Granted: 1950-05-09
•
Expires: 1968-11-17
Abstract
No abstract record available.
Inventors
- 👤 James B Giern
- 👤 Anders P Anholtt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:26
CPC Classifications
B; B23; B23B; B23B49/00; B23B49/02; B23B49/023; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/569; Y10T408/96
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE361981C
Cited
US2353295A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |