US2750983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rogers
Assignee: —
•
Filing: —
•
Granted: 1956-06-19
•
Expires: 1973-06-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:47
CPC Classifications
B; B21; B21D; B21D1/00; B21D1/12; B21D1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US823711A
Cited
US1524753A
Cited
US1804997A
Cited
US1723970A
Cited
US1907925A
Cited
US2000572A
Cited
US2013785A
Cited
US2200133A
Cited
DE710420C
Cited
US2422030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-19 | 1959-12-19 | 1960-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-19 | 1963-12-19 | 1964-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-19 | 1967-12-19 | 1968-06-19 | $7700.00 | Window Closed / Lapsed |