US2412930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for making rifling rings or the like
Assignee: HAMLIN METAL PRODUCTS Co
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Filing: 1942-05-04
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Granted: 1946-12-17
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Expires: 1962-05-04
Abstract
No abstract record available.
Inventors
- 👤 Mercer D Walklet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:53
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/16; B23; B23D; B23D21/00; B23D21/14; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/953; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/2122; Y10T83/2131; Y10T83/22; Y10T83/2205; Y10T83/384; Y10T83/387; Y10T83/391; Y10T83/395; Y10T83/396; Y10T83/403; Y10T83/444; Y10T83/4594; Y10T83/869; Y10T83/8776; Y10T83/8785
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) | 1949-12-16 | 1950-06-17 | 1950-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-12-16 | 1954-06-17 | 1954-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-12-16 | 1958-06-17 | 1958-12-17 | $7700.00 | Window Closed / Lapsed |