Patent US1602860A successfully refreshed from Google Patents.
US1602860A
Expired / Lapsed
US
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Machine tool
Assignee: Sleeper and Hartley Inc
•
Filing: 1923-12-08
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Granted: 1926-10-12
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Expires: 1943-12-08
Abstract
No abstract record available.
Inventors
- 👤 Frank H Sleeper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:01
CPC Classifications
B; B23; B23Q; B23Q5/00; B23C; B23C1/00; B23Q1/00; B23Q1/01; B23Q1/015; B23Q1/25; B23Q1/44; B23Q1/48; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/306664; Y10T409/307392; Y10T409/307448
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) | 1929-10-11 | 1930-04-12 | 1930-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-10-11 | 1934-04-12 | 1934-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-10-11 | 1938-04-12 | 1938-10-12 | $7700.00 | Window Closed / Lapsed |