US1999599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of constructing valve seats for internal combustion engines and similar mechanisms
Assignee: White Motor Co
•
Filing: 1932-03-18
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Granted: 1935-04-30
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Expires: 1952-03-18
Abstract
No abstract record available.
Inventors
- 👤 Jr George W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:52
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/001; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/4927; Y10T29/49298; Y10T29/49306; Y10T29/4998; Y10T29/49982; Y10T29/49986; Y10T29/49995; Y10T29/49996
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) | 1938-04-29 | 1938-10-29 | 1939-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-04-29 | 1942-10-29 | 1943-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-04-29 | 1946-10-29 | 1947-04-30 | $7700.00 | Window Closed / Lapsed |