US1349958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interchangeable positive and friction drive and reversible gearing for machine-tools
Assignee: COLBURN MACHINE TOOL Co
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Filing: 1917-11-10
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Granted: 1920-08-17
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Expires: 1937-11-10
Abstract
No abstract record available.
Inventors
- 👤 Ernest C Head
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:14
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q2705/00; B23Q2705/005; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19293; Y10T74/19298; Y10T74/19307; Y10T74/19312
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1923-08-17 | 1924-02-16 | 1924-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-08-17 | 1928-02-16 | 1928-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-08-17 | 1932-02-16 | 1932-08-17 | $7700.00 | Window Closed / Lapsed |