US2819905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary magnetic work holders
Assignee: Taft Peirce Manufacturing Co
•
Filing: 1956-07-30
•
Granted: 1958-01-14
•
Expires: 1976-07-30
Abstract
No abstract record available.
Inventors
- 👤 Stead Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:44
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/28; B23Q; B23Q3/00; B23Q3/15; B23Q3/152; B23Q3/154; B23Q3/1546; B23B2270/00; B23B2270/38; Y; Y10; Y10T; Y10T279/00; Y10T279/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2741481A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |