US2590851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: C J W Corp
•
Filing: 1948-07-10
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Granted: 1952-04-01
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Expires: 1968-07-10
Abstract
No abstract record available.
Inventors
- 👤 Edwin C Elsner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:31
CPC Classifications
A; A44; A44B; A44B11/00; A44B11/25; A44B11/2503; A44B11/2526; A44B11/2546; A44B11/2553; A44B11/2557; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45471; Y10T24/45482; Y10T24/45487; Y10T24/45497
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |