US3246389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making rotors
Assignee: Mannesmann Demag AG
•
Filing: 1964-06-03
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Granted: 1966-04-19
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Expires: 1984-06-03
Abstract
No abstract record available.
Inventors
- 👤 Pfau Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:13
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/3061; B; B23; B23K; B23K9/00; B23K9/0026; B23P; B23P15/00; B23P15/006; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4932; Y10T29/49321
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2448825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |