Patent US2013676A successfully refreshed from Google Patents.
US2013676A
Expired / Lapsed
US
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Position control apparatus
Assignee: Individual
•
Filing: 1930-08-20
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Granted: 1935-09-10
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Expires: 1950-08-20
Abstract
No abstract record available.
Inventors
- 👤 Duncan J Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:32
CPC Classifications
B; B23; B23C; B23C9/00; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301624; Y10T409/30168; Y10T409/301904; Y10T409/30196; Y10T409/302688; Y10T409/302744; Y10T409/3028; Y10T82/00; Y10T82/14; Y10T82/141; Y10T82/143
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) | 1938-09-09 | 1939-03-11 | 1939-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-09-09 | 1943-03-11 | 1943-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-09-09 | 1947-03-11 | 1947-09-10 | $7700.00 | Window Closed / Lapsed |