US2809044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lathe work center
Assignee: Individual
•
Filing: 1957-04-30
•
Granted: 1957-10-08
•
Expires: 1977-04-30
Abstract
No abstract record available.
Inventors
- 👤 Herschel J Landreth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:51
CPC Classifications
B; B23; B23B; B23B23/00; B23B23/02; B23B31/00; B23B31/02; B23B31/10; B23B31/101; B23B2260/00; B23B2260/004; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/14; Y10T279/26; Y10T82/00; Y10T82/27
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191122543A
Cited
US1428620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |