US2849057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire spring members and structures
Assignee: Universal Wire Spring Co
•
Filing: 1954-08-09
•
Granted: 1958-08-26
•
Expires: 1974-08-09
Abstract
No abstract record available.
Inventors
- 👤 William H Neely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:29
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/28; A47C7/287
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2311145A
Cited
US1476046A
Cited
US2356417A
Cited
US2643705A
Cited
US2669293A
Cited
US2684844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |