US1728002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal-spinning apparatus
Assignee: SPUN STEEL Corp
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Filing: 1928-06-20
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Granted: 1929-09-10
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Expires: 1948-06-20
Abstract
No abstract record available.
Inventors
- 👤 Reynold G Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:02
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/26; B21D53/261; B21D22/00; B21D22/14; B21D22/16; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49453; Y10T29/4946
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) | 1932-09-09 | 1933-03-11 | 1933-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-09-09 | 1937-03-11 | 1937-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-09-09 | 1941-03-11 | 1941-09-10 | $7700.00 | Window Closed / Lapsed |