US2058165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of protecting, silencing, and rigidizing fabricated spring structures
Assignee: TRENTON SPRING PRODUCTS Co
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Filing: 1935-03-28
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Granted: 1936-10-20
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Expires: 1955-03-28
Abstract
No abstract record available.
Inventors
- 👤 Charles F Mccoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:37
CPC Classifications
A; A47; A47C; A47C23/00; A47C23/04; A47C23/05; A47C23/055; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10T; Y10T29/00; Y10T29/49; Y10T29/49609; Y10T29/49613; Y10T29/49826; Y10T29/49888
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-10-20 | 1940-04-20 | 1940-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-10-20 | 1944-04-20 | 1944-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-10-20 | 1948-04-20 | 1948-10-20 | $7700.00 | Window Closed / Lapsed |