US3435648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling mill
Assignee: TRAFIK AB
•
Filing: 1966-06-07
•
Granted: 1969-04-01
•
Expires: 1986-06-07
Abstract
No abstract record available.
Inventors
- 👤 Erik W Bergstrom
- 👤 Nils Gunnar H Borg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:07
CPC Classifications
B; B21; B21B; B21B31/00; B21B31/16; B21B31/20; B21B31/32; B21B33/00; Y; Y10; Y10S; Y10S425/00; Y10S425/235
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1477840A
Cited
US2205632A
Cited
US2182900A
Cited
US2382263A
Cited
US2699196A
Cited
FR1124811A
Cited
US3055243A
Cited
US3327510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |