US1719243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making piston rods
Assignee: WM H KELLER Inc
•
Filing: 1925-08-10
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Granted: 1929-07-02
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Expires: 1945-08-10
Abstract
No abstract record available.
Inventors
- 👤 Ernest H Shaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:46
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/44; B21K1/76; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49288; Y10T29/49291; Y10T74/00; Y10T74/21; Y10T74/2142
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) | 1932-07-01 | 1932-12-31 | 1933-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-07-01 | 1936-12-31 | 1937-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-07-01 | 1940-12-31 | 1941-07-02 | $7700.00 | Window Closed / Lapsed |