US2473306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tandem spindle lathe
Assignee: Individual
•
Filing: 1943-01-29
•
Granted: 1949-06-14
•
Expires: 1963-01-29
Abstract
No abstract record available.
Inventors
- 👤 John H Schreiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:54
CPC Classifications
B; B23; B23B; B23B3/00; B23B3/30; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/20; B23B31/201; B23B31/207; B23B31/2073; B23Q; B23Q39/00; B23Q39/04; B23Q39/048; B23B2270/00; B23B2270/02; B23B2270/025; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5104; Y10T29/5109; Y10T29/5113; Y10T82/00; Y10T82/25; Y10T82/2514; Y10T82/2524
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |