US1190989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage-battery plate and process of forming the same.
Assignee: US Light and Heat Corp
•
Filing: 1909-02-20
•
Granted: 1916-07-11
•
Expires: 1929-02-20
Abstract
No abstract record available.
Inventors
- 👤 Frank Engel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:02
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M10/052; H01M10/0525; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T29/00; Y10T29/10
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) | 1919-07-11 | 1920-01-10 | 1920-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-07-11 | 1924-01-10 | 1924-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-07-11 | 1928-01-10 | 1928-07-11 | $7700.00 | Window Closed / Lapsed |