US1650645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve tappet and method of forming the same
Assignee: WILCOX PRODUCTS Corp
•
Filing: 1925-12-14
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Granted: 1927-11-29
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Expires: 1945-12-14
Abstract
No abstract record available.
Inventors
- 👤 William C Osterholm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:56
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/001; B23P15/002; Y; Y10; Y10S; Y10S164/00; Y10S164/13; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49298; Y10T29/49304
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) | 1930-11-28 | 1931-05-30 | 1931-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-11-28 | 1935-05-30 | 1935-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-11-28 | 1939-05-30 | 1939-11-29 | $7700.00 | Window Closed / Lapsed |