US2917033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocker arm and process of manufacturing the same
Assignee: Parsons Corp
•
Filing: 1958-01-27
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Granted: 1959-12-15
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Expires: 1978-01-27
Abstract
No abstract record available.
Inventors
- 👤 Axel V Brogren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:31
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/20; B21K1/205; B21D; B21D53/00; B21D53/84; F; F01; F01L; F01L1/00; F01L1/12; F01L1/18; F01L1/181; F01L2303/00
Claims Analysis
Total Claims: 0
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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) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |