US2609192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coil spring and coil spring assembly, including the support for such springs
Assignee: EASTERN METALS RES CO Inc
•
Filing: 1949-05-28
•
Granted: 1952-09-02
•
Expires: 1969-05-28
Abstract
No abstract record available.
Inventors
- 👤 Lermont Basil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:10
CPC Classifications
B; B21; B21F; B21F35/00; B21F3/00; B21F3/02; B21F3/08; F; F16; F16F; F16F1/00; F16F1/02; F16F1/04
Claims Analysis
Total Claims: 0
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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) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |