Patent US2504608A successfully refreshed from Google Patents.
US2504608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Woven synthetic resin storage battery retainer with ribs
Assignee: Exide Technologies LLC
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Filing: 1943-04-29
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Granted: 1950-04-18
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Expires: 1963-04-29
Abstract
No abstract record available.
Inventors
- 👤 White Curtice Chandler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:53
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/40; H01M50/463; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S428/00; Y10S428/91
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
A RETAINER FOR USE BETWEEN THE PLATES OF A LEAD-ACID STORAGE BATTERY COMPRISING A KNITTED FABRIC OF THREADS OF INITIALLY MOLECULARLY ORIENTED FILAMENTS OF SYNTHETIC RESIN INSOLUBLE IN THE ELECTROLYTE AND RESISTANT TO THE OXIDIZING AND ELECTROCHEMICAL REACTIONS IN THE BATTERY, SAID FABRIC PROVIDED WITH PARALLEL RIBS INTEGRAL WITH THE STRUCTURE OF THE FABRIC, SAID RIBS COMPRISING A SERIES OF DROP STITCH LOOPS OF SHRUNKEN THREADS AT CORRESPONDING POINTS IN CONSECUTIVE ROWS CONSTITUTING TRANSVERSELY CURVED RIB-LIKE ELEVATIONS ABOVE THE ADJACENT SURFACE OF THE FABRIC.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-17 | 1953-10-17 | 1954-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-17 | 1957-10-17 | 1958-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-17 | 1961-10-17 | 1962-04-18 | $7700.00 | Window Closed / Lapsed |