US2909281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closed end sleeve-like boss and method of making
Assignee: Old Carco LLC
•
Filing: 1954-05-19
•
Granted: 1959-10-20
•
Expires: 1974-05-19
Abstract
No abstract record available.
Inventors
- 👤 Olavi M Koskinen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:03
CPC Classifications
B; B21; B21K; B21K23/00; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/28; B21C37/29; B21J; B21J5/00; B21J5/06; B21J5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |