US2570370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring device
Assignee: Union Asbestos and Rubber Co
•
Filing: 1946-02-23
•
Granted: 1951-10-09
•
Expires: 1966-02-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur F O'connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:51
CPC Classifications
F; F16; F16F; F16F3/00; F16F3/08; F16F3/087; F16F3/0873; F16F7/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US84688A
Cited
US1176723A
Cited
US1169863A
Cited
US1290307A
Cited
US1713914A
Cited
US2137152A
Cited
US2108124A
Cited
US2194792A
Cited
US2265392A
Cited
US2289790A
Cited
GB553606A
Cited
US2446164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |