US1665604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage-battery separator
Assignee: Westinghouse Union Battery Co
•
Filing: 1924-10-01
•
Granted: 1928-04-10
•
Expires: 1944-10-01
Abstract
No abstract record available.
Inventors
- 👤 Paul E Norris
- 👤 Herbert H Aldrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:54
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/40; H01M50/463; Y; Y02; Y02E; Y02E60/00; Y02E60/10
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) | 1931-04-10 | 1931-10-10 | 1932-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-04-10 | 1935-10-10 | 1936-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-04-10 | 1939-10-10 | 1940-04-10 | $7700.00 | Window Closed / Lapsed |