US2932503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Springs
Assignee: American Machine and Metals Inc
•
Filing: 1956-08-28
•
Granted: 1960-04-12
•
Expires: 1976-08-28
Abstract
No abstract record available.
Inventors
- 👤 Ambrose E Van Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:48
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/10; F03; F03G; F03G1/00; F03G1/02; F03G1/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US151638A
Cited
CA510979A
Cited
US1676596A
Cited
US1967088A
Cited
US1977458A
Cited
US2667347A
Cited
US2801100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |