US3387141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant voltage battery system
Assignee: Lorain Products Corp
•
Filing: 1964-10-12
•
Granted: 1968-06-04
•
Expires: 1984-10-12
Abstract
No abstract record available.
Inventors
- 👤 Brian W Howald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:41
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2897433A
Cited
US3009093A
Cited
US3040271A
Cited
US2991410A
Cited
US3192464A
Cited
US3222535A
Cited
US3293446A
Cited
US3293530A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |