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US3415090A
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Stand for helical rolling
Assignee: FELIX PETROVICH KIRPICHNIKOV
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Filing: 1965-12-15
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Granted: 1968-12-10
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Expires: 1985-12-15
Abstract
No abstract record available.
Inventors
- 👤 Kirpichnikov Felix Petrovich
- 👤 Bykasov Viktor Ivanovich
- 👤 Reshetov Leonid Nikolaevich
- 👤 Miljutin Serafim Porfirievich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:57
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/20; B21C37/207
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2385498A
Cited
US2430210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |