US2036656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve seat cutter
Assignee: VAN NORMAN MACHINE TOOL CO
•
Filing: 1932-06-08
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Granted: 1936-04-07
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Expires: 1952-06-08
Abstract
No abstract record available.
Inventors
- 👤 Byron F Stowell
- 👤 Roger S Pyne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:58
CPC Classifications
B; B23; B23C; B23C3/00; B23C3/02; B23C3/05; B23C3/051; B23C3/053; B23C3/055; B23C5/00; B23C5/006; B23C5/16; B23C5/18; B23C2210/00; B23C2210/08; B23C2210/086; B23C2210/28; B23C2210/282; B23C2210/48; B23C2222/00; B23C2222/98; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1904; Y10T408/00; Y10T408/89; Y10T408/909
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) | 1939-04-07 | 1939-10-07 | 1940-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-04-07 | 1943-10-07 | 1944-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-04-07 | 1947-10-07 | 1948-04-07 | $7700.00 | Window Closed / Lapsed |