Patent US3474652A successfully refreshed from Google Patents.
US3474652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling of cylindrical workpieces
Assignee: ROTARY PROFILE ANSTALT
•
Filing: 1967-05-01
•
Granted: 1969-10-28
•
Expires: 1987-05-01
Abstract
No abstract record available.
Inventors
- 👤 Jacob Marcovitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:26
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/76; B21K1/761; B21B; B21B1/00; B21B1/16; B21B19/00; B21B19/12; B21B23/00; B21C; B21C1/00; B21C1/16; B21C1/22; B21C1/24; B21C1/26; B21C3/00; B21C3/02; B21C3/08; B21H; B21H1/00; B21H1/06; B21H1/18; B21H8/00; B23; B23D; B23D25/00; B23D25/02; B23D25/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |