Patent US3373635A successfully refreshed from Google Patents.
US3373635A
Expired / Lapsed
US
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Drive mechanism for two rolling frames of a tube reducing rolling mill
Assignee: Mannesmann Meer AG
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Filing: 1965-04-09
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Granted: 1968-03-19
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Expires: 1985-04-09
Abstract
No abstract record available.
Inventors
- 👤 Meurer Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:57
CPC Classifications
B; B21; B21B; B21B35/00; B21B35/02; B21B35/025; B21B2035/005; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19079; Y10T74/19084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |