Patent US1301993A successfully refreshed from Google Patents.
US1301993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery-vent.
Assignee: VESTA ACCUMULATOR Co
•
Filing: 1918-09-06
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Granted: 1919-04-29
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Expires: 1938-09-06
Abstract
No abstract record available.
Inventors
- 👤 Chester M Angell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:21
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/60; H01M50/609; H01M50/627; H01M50/636; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T137/00; Y10T137/0753; Y10T137/0874
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) | 1922-04-28 | 1922-10-28 | 1923-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-04-28 | 1926-10-28 | 1927-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-04-28 | 1930-10-28 | 1931-04-29 | $7700.00 | Window Closed / Lapsed |